Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change (ASCONF). A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system. (CVE-2014-7841, Important)

* A race condition flaw was found in the way the Linux kernel's mmap(2), madvise(2), and fallocate(2) system calls interacted with each other while operating on virtual memory file system files. A local user could use this flaw to cause a denial of service.
(CVE-2014-4171, Moderate)

* A NULL pointer dereference flaw was found in the way the Linux kernel's Common Internet File System (CIFS) implementation handled mounting of file system shares. A remote attacker could use this flaw to crash a client system that would mount a file system share from a malicious server. (CVE-2014-7145, Moderate)

* A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate)

* It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags.
An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low)

Red Hat would like to thank Akira Fujita of NEC for reporting the CVE-2014-7822 issue. The CVE-2014-7841 issue was discovered by Liu Wei of Red Hat.

This update also fixes the following bugs :

* Previously, a kernel panic could occur if a process reading from a locked NFS file was killed and the lock was not released properly before the read operations finished. Consequently, the system crashed.
The code handling file locks has been fixed, and instead of halting, the system now emits a warning about the unreleased lock. (BZ#1172266)

* A race condition in the command abort handling logic of the ipr device driver could cause the kernel to panic when the driver received a response to an abort command prior to receiving other responses to the aborted command due to the support for multiple interrupts. With this update, the abort handler waits for the aborted command's responses first before completing an abort operation. (BZ#1162734)

* Previously, a race condition could occur when changing a Page Table Entry (PTE) or a Page Middle Directory (PMD) to 'pte_numa' or 'pmd_numa', respectively, causing the kernel to crash. This update removes the BUG_ON() macro from the __handle_mm_fault() function, preventing the kernel panic in the aforementioned scenario.
(BZ#1170662)

All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Updated libyaml packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

YAML is a data serialization format designed for human readability and interaction with scripting languages. LibYAML is a YAML parser and emitter written in C.

An assertion failure was found in the way the libyaml library parsed wrapped strings. An attacker able to load specially crafted YAML input into an application using libyaml could cause the application to crash. (CVE-2014-9130)

All libyaml users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications linked against the libyaml library must be restarted for this update to take effect.

Updated kernel packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change (ASCONF). A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system. (CVE-2014-7841, Important)

* An integer overflow flaw was found in the way the Linux kernel's Advanced Linux Sound Architecture (ALSA) implementation handled user controls. A local, privileged user could use this flaw to crash the system. (CVE-2014-4656, Moderate)

The CVE-2014-7841 issue was discovered by Liu Wei of Red Hat.

This update also fixes several bugs. Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section.

All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Updated glibc packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the Name Server Caching Daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

A heap-based buffer overflow was found in glibc's
__nss_hostname_digits_dots() function, which is used by the gethostbyname() and gethostbyname2() glibc function calls. A remote attacker able to make an application call either of these functions could use this flaw to execute arbitrary code with the permissions of the user running the application. (CVE-2015-0235)

Red Hat would like to thank Qualys for reporting this issue.

All glibc users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Updated glibc packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the Name Server Caching Daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

A heap-based buffer overflow was found in glibc's
__nss_hostname_digits_dots() function, which is used by the gethostbyname() and gethostbyname2() glibc function calls. A remote attacker able to make an application call either of these functions could use this flaw to execute arbitrary code with the permissions of the user running the application. (CVE-2015-0235)

Red Hat would like to thank Qualys for reporting this issue.

All glibc users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Updated java-1.6.0-openjdk packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The java-1.6.0-openjdk packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Java Software Development Kit.

A flaw was found in the way the Hotspot component in OpenJDK verified bytecode from the class files. An untrusted Java application or applet could possibly use this flaw to bypass Java sandbox restrictions.
(CVE-2014-6601)

Multiple improper permission check issues were discovered in the JAX-WS, and RMI components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions.
(CVE-2015-0412, CVE-2015-0408)

A flaw was found in the way the Hotspot garbage collector handled phantom references. An untrusted Java application or applet could use this flaw to corrupt the Java Virtual Machine memory and, possibly, execute arbitrary code, bypassing Java sandbox restrictions.
(CVE-2015-0395)

A flaw was found in the way the DER (Distinguished Encoding Rules) decoder in the Security component in OpenJDK handled negative length values. A specially crafted, DER-encoded input could cause a Java application to enter an infinite loop when decoded. (CVE-2015-0410)

A flaw was found in the way the SSL 3.0 protocol handled padding bytes when decrypting messages that were encrypted using block ciphers in cipher block chaining (CBC) mode. This flaw could possibly allow a man-in-the-middle (MITM) attacker to decrypt portions of the cipher text using a padding oracle attack. (CVE-2014-3566)

Note: This update disables SSL 3.0 by default to address this issue.
The jdk.tls.disabledAlgorithms security property can be used to re-enable SSL 3.0 support if needed. For additional information, refer to the Red Hat Bugzilla bug linked to in the References section.

It was discovered that the SSL/TLS implementation in the JSSE component in OpenJDK failed to properly check whether the ChangeCipherSpec was received during the SSL/TLS connection handshake.
An MITM attacker could possibly use this flaw to force a connection to be established without encryption being enabled. (CVE-2014-6593)

An information leak flaw was found in the Swing component in OpenJDK.
An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions. (CVE-2015-0407)

A NULL pointer dereference flaw was found in the MulticastSocket implementation in the Libraries component of OpenJDK. An untrusted Java application or applet could possibly use this flaw to bypass certain Java sandbox restrictions. (CVE-2014-6587)

Multiple boundary check flaws were found in the font parsing code in the 2D component in OpenJDK. A specially crafted font file could allow an untrusted Java application or applet to disclose portions of the Java Virtual Machine memory. (CVE-2014-6585, CVE-2014-6591)

Multiple insecure temporary file use issues were found in the way the Hotspot component in OpenJDK created performance statistics and error log files. A local attacker could possibly make a victim using OpenJDK overwrite arbitrary files using a symlink attack. (CVE-2015-0383)

The CVE-2015-0383 issue was discovered by Red Hat.

All users of java-1.6.0-openjdk are advised to upgrade to these updated packages, which resolve these issues. All running instances of OpenJDK Java must be restarted for the update to take effect.

Updated jasper packages that fix two security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

JasPer is an implementation of Part 1 of the JPEG 2000 image compression standard.

An off-by-one flaw, leading to a heap-based buffer overflow, was found in the way JasPer decoded JPEG 2000 image files. A specially crafted file could cause an application using JasPer to crash or, possibly, execute arbitrary code. (CVE-2014-8157)

An unrestricted stack memory use flaw was found in the way JasPer decoded JPEG 2000 image files. A specially crafted file could cause an application using JasPer to crash or, possibly, execute arbitrary code. (CVE-2014-8158)

Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges pyddeh as the original reporter.

All JasPer users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All applications using the JasPer libraries must be restarted for the update to take effect.

Updated java-1.8.0-openjdk packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.

Multiple flaws were found in the way the Hotspot component in OpenJDK verified bytecode from the class files, and in the way this component generated code for bytecode. An untrusted Java application or applet could possibly use these flaws to bypass Java sandbox restrictions.
(CVE-2014-6601, CVE-2015-0437)

Multiple improper permission check issues were discovered in the JAX-WS, Libraries, and RMI components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions. (CVE-2015-0412, CVE-2014-6549, CVE-2015-0408)

A flaw was found in the way the Hotspot garbage collector handled phantom references. An untrusted Java application or applet could use this flaw to corrupt the Java Virtual Machine memory and, possibly, execute arbitrary code, bypassing Java sandbox restrictions.
(CVE-2015-0395)

A flaw was found in the way the DER (Distinguished Encoding Rules) decoder in the Security component in OpenJDK handled negative length values. A specially crafted, DER-encoded input could cause a Java application to enter an infinite loop when decoded. (CVE-2015-0410)

A flaw was found in the way the SSL 3.0 protocol handled padding bytes when decrypting messages that were encrypted using block ciphers in cipher block chaining (CBC) mode. This flaw could possibly allow a man-in-the-middle (MITM) attacker to decrypt portions of the cipher text using a padding oracle attack. (CVE-2014-3566)

Note: This update disables SSL 3.0 by default to address this issue.
The jdk.tls.disabledAlgorithms security property can be used to re-enable SSL 3.0 support if needed. For additional information, refer to the Red Hat Bugzilla bug linked to in the References section.

It was discovered that the SSL/TLS implementation in the JSSE component in OpenJDK failed to properly check whether the ChangeCipherSpec was received during the SSL/TLS connection handshake.
An MITM attacker could possibly use this flaw to force a connection to be established without encryption being enabled. (CVE-2014-6593)

An information leak flaw was found in the Swing component in OpenJDK.
An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions. (CVE-2015-0407)

A NULL pointer dereference flaw was found in the MulticastSocket implementation in the Libraries component of OpenJDK. An untrusted Java application or applet could possibly use this flaw to bypass certain Java sandbox restrictions. (CVE-2014-6587)

Multiple boundary check flaws were found in the font parsing code in the 2D component in OpenJDK. A specially crafted font file could allow an untrusted Java application or applet to disclose portions of the Java Virtual Machine memory. (CVE-2014-6585, CVE-2014-6591)

Multiple insecure temporary file use issues were found in the way the Hotspot component in OpenJDK created performance statistics and error log files. A local attacker could possibly make a victim using OpenJDK overwrite arbitrary files using a symlink attack. (CVE-2015-0383)

The CVE-2015-0383 issue was discovered by Red Hat.

All users of java-1.8.0-openjdk are advised to upgrade to these updated packages, which resolve these issues. All running instances of OpenJDK Java must be restarted for the update to take effect.

Updated java-1.7.0-openjdk packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The java-1.7.0-openjdk packages provide the OpenJDK 7 Java Runtime Environment and the OpenJDK 7 Java Software Development Kit.

A flaw was found in the way the Hotspot component in OpenJDK verified bytecode from the class files. An untrusted Java application or applet could possibly use this flaw to bypass Java sandbox restrictions.
(CVE-2014-6601)

Multiple improper permission check issues were discovered in the JAX-WS, and RMI components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions.
(CVE-2015-0412, CVE-2015-0408)

A flaw was found in the way the Hotspot garbage collector handled phantom references. An untrusted Java application or applet could use this flaw to corrupt the Java Virtual Machine memory and, possibly, execute arbitrary code, bypassing Java sandbox restrictions.
(CVE-2015-0395)

A flaw was found in the way the DER (Distinguished Encoding Rules) decoder in the Security component in OpenJDK handled negative length values. A specially crafted, DER-encoded input could cause a Java application to enter an infinite loop when decoded. (CVE-2015-0410)

A flaw was found in the way the SSL 3.0 protocol handled padding bytes when decrypting messages that were encrypted using block ciphers in cipher block chaining (CBC) mode. This flaw could possibly allow a man-in-the-middle (MITM) attacker to decrypt portions of the cipher text using a padding oracle attack. (CVE-2014-3566)

Note: This update disables SSL 3.0 by default to address this issue.
The jdk.tls.disabledAlgorithms security property can be used to re-enable SSL 3.0 support if needed. For additional information, refer to the Red Hat Bugzilla bug linked to in the References section.

It was discovered that the SSL/TLS implementation in the JSSE component in OpenJDK failed to properly check whether the ChangeCipherSpec was received during the SSL/TLS connection handshake.
An MITM attacker could possibly use this flaw to force a connection to be established without encryption being enabled. (CVE-2014-6593)

An information leak flaw was found in the Swing component in OpenJDK.
An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions. (CVE-2015-0407)

A NULL pointer dereference flaw was found in the MulticastSocket implementation in the Libraries component of OpenJDK. An untrusted Java application or applet could possibly use this flaw to bypass certain Java sandbox restrictions. (CVE-2014-6587)

Multiple boundary check flaws were found in the font parsing code in the 2D component in OpenJDK. A specially crafted font file could allow an untrusted Java application or applet to disclose portions of the Java Virtual Machine memory. (CVE-2014-6585, CVE-2014-6591)

Multiple insecure temporary file use issues were found in the way the Hotspot component in OpenJDK created performance statistics and error log files. A local attacker could possibly make a victim using OpenJDK overwrite arbitrary files using a symlink attack. (CVE-2015-0383)

The CVE-2015-0383 issue was discovered by Red Hat.

All users of java-1.7.0-openjdk are advised to upgrade to these updated packages, which resolve these issues. All running instances of OpenJDK Java must be restarted for the update to take effect.

Updated java-1.7.0-openjdk packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The java-1.7.0-openjdk packages provide the OpenJDK 7 Java Runtime Environment and the OpenJDK 7 Java Software Development Kit.

A flaw was found in the way the Hotspot component in OpenJDK verified bytecode from the class files. An untrusted Java application or applet could possibly use this flaw to bypass Java sandbox restrictions.
(CVE-2014-6601)

Multiple improper permission check issues were discovered in the JAX-WS, and RMI components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions.
(CVE-2015-0412, CVE-2015-0408)

A flaw was found in the way the Hotspot garbage collector handled phantom references. An untrusted Java application or applet could use this flaw to corrupt the Java Virtual Machine memory and, possibly, execute arbitrary code, bypassing Java sandbox restrictions.
(CVE-2015-0395)

A flaw was found in the way the DER (Distinguished Encoding Rules) decoder in the Security component in OpenJDK handled negative length values. A specially crafted, DER-encoded input could cause a Java application to enter an infinite loop when decoded. (CVE-2015-0410)

A flaw was found in the way the SSL 3.0 protocol handled padding bytes when decrypting messages that were encrypted using block ciphers in cipher block chaining (CBC) mode. This flaw could possibly allow a man-in-the-middle (MITM) attacker to decrypt portions of the cipher text using a padding oracle attack. (CVE-2014-3566)

Note: This update disables SSL 3.0 by default to address this issue.
The jdk.tls.disabledAlgorithms security property can be used to re-enable SSL 3.0 support if needed. For additional information, refer to the Red Hat Bugzilla bug linked to in the References section.

It was discovered that the SSL/TLS implementation in the JSSE component in OpenJDK failed to properly check whether the ChangeCipherSpec was received during the SSL/TLS connection handshake.
An MITM attacker could possibly use this flaw to force a connection to be established without encryption being enabled. (CVE-2014-6593)

An information leak flaw was found in the Swing component in OpenJDK.
An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions. (CVE-2015-0407)

A NULL pointer dereference flaw was found in the MulticastSocket implementation in the Libraries component of OpenJDK. An untrusted Java application or applet could possibly use this flaw to bypass certain Java sandbox restrictions. (CVE-2014-6587)

Multiple boundary check flaws were found in the font parsing code in the 2D component in OpenJDK. A specially crafted font file could allow an untrusted Java application or applet to disclose portions of the Java Virtual Machine memory. (CVE-2014-6585, CVE-2014-6591)

Multiple insecure temporary file use issues were found in the way the Hotspot component in OpenJDK created performance statistics and error log files. A local attacker could possibly make a victim using OpenJDK overwrite arbitrary files using a symlink attack. (CVE-2015-0383)

The CVE-2015-0383 issue was discovered by Red Hat.

Note: If the web browser plug-in provided by the icedtea-web package was installed, the issues exposed via Java applets could have been exploited without user interaction if a user visited a malicious website.

All users of java-1.7.0-openjdk are advised to upgrade to these updated packages, which resolve these issues. All running instances of OpenJDK Java must be restarted for the update to take effect.

Updated OpenSSL packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL), Transport Layer Security (TLS), and Datagram Transport Layer Security (DTLS) protocols, as well as a full-strength, general purpose cryptography library.

  - A NULL pointer dereference flaw was found in the DTLS     implementation of OpenSSL. A remote attacker could send     a specially crafted DTLS message, which would cause an     OpenSSL server to crash. (CVE-2014-3571)

  - A memory leak flaw was found in the way the     dtls1_buffer_record() function of OpenSSL parsed certain     DTLS messages. A remote attacker could send multiple     specially crafted DTLS messages to exhaust all available     memory of a DTLS server. (CVE-2015-0206)

  - It was found that OpenSSL's BigNumber Squaring     implementation could produce incorrect results under     certain special conditions. This flaw could possibly     affect certain OpenSSL library functionality, such as     RSA blinding. Note that this issue occurred rarely and     with a low probability, and there is currently no known     way of exploiting it. (CVE-2014-3570)

  - It was discovered that OpenSSL would perform an ECDH key     exchange with a non-ephemeral key even when the     ephemeral ECDH cipher suite was selected. A malicious     server could make a TLS/SSL client using OpenSSL use a     weaker key exchange method than the one requested by the     user. (CVE-2014-3572)

  - It was discovered that OpenSSL would accept ephemeral     RSA keys when using non-export RSA cipher suites. A     malicious server could make a TLS/SSL client using     OpenSSL use a weaker key exchange method.
    (CVE-2015-0204)

  - Multiple flaws were found in the way OpenSSL parsed     X.509 certificates. An attacker could use these flaws to     modify an X.509 certificate to produce a certificate     with a different fingerprint without invalidating its     signature, and possibly bypass fingerprint-based     blacklisting in applications. (CVE-2014-8275)

  - It was found that an OpenSSL server would, under certain     conditions, accept Diffie-Hellman client certificates     without the use of a private key. An attacker could use     a user's client certificate to authenticate as that     user, without needing the private key. (CVE-2015-0205)

All OpenSSL users are advised to upgrade to these updated packages, which contain a backported patch to mitigate the above issues. For the update to take effect, all services linked to the OpenSSL library (such as httpd and other SSL-enabled services) must be restarted or the system rebooted.

An updated thunderbird package that fixes three security issues is now available for Red Hat Enterprise Linux 5 and 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Two flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2014-8634, CVE-2014-8639)

It was found that the Beacon interface implementation in Thunderbird did not follow the Cross-Origin Resource Sharing (CORS) specification.
A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (XSRF) attack. (CVE-2014-8638)

Note: All of the above issues cannot be exploited by a specially crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, Patrick McManus, Muneaki Nishimura, and Xiaofeng Zheng as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security advisories for Thunderbird 31.4.0. You can find a link to the Mozilla advisories in the References section of this erratum.

All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 31.4.0, which corrects these issues.
After installing the update, Thunderbird must be restarted for the changes to take effect.

Updated firefox packages that fix multiple security issues and one bug are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2014-8634, CVE-2014-8639, CVE-2014-8641)

It was found that the Beacon interface implementation in Firefox did not follow the Cross-Origin Resource Sharing (CORS) specification. A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (XSRF) attack. (CVE-2014-8638)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, Patrick McManus, Muneaki Nishimura, Xiaofeng Zheng, and Mitchell Harper as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 31.4.0 ESR. You can find a link to the Mozilla advisories in the References section of this erratum.

This update also fixes the following bug :

* The default dictionary for Firefox's spell checker is now correctly set to the system's locale language. (BZ#643954, BZ#1150572)

All Firefox users should upgrade to these updated packages, which contain Firefox version 31.4.0 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Updated glibc packages that fix two security issues and two bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the Name Server Caching Daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

An out-of-bounds read flaw was found in the way glibc's iconv() function converted certain encoded data to UTF-8. An attacker able to make an application call the iconv() function with a specially crafted argument could use this flaw to crash that application.
(CVE-2014-6040)

It was found that the wordexp() function would perform command substitution even when the WRDE_NOCMD flag was specified. An attacker able to provide specially crafted input to an application using the wordexp() function, and not sanitizing the input correctly, could potentially use this flaw to execute arbitrary commands with the credentials of the user running that application. (CVE-2014-7817)

The CVE-2014-7817 issue was discovered by Tim Waugh of the Red Hat Developer Experience Team.

This update also fixes the following bugs :

* Previously, when an address lookup using the getaddrinfo() function for the AF_UNSPEC value was performed on a defective DNS server, the server in some cases responded with a valid response for the A record, but a referral response for the AAAA record, which resulted in a lookup failure. A prior update was implemented for getaddrinfo() to return the valid response, but it contained a typographical error, due to which the lookup could under some circumstances still fail. This error has been corrected and getaddrinfo() now returns a valid response in the described circumstances. (BZ#1172023)

* An error in the dlopen() library function previously caused recursive calls to dlopen() to terminate unexpectedly or to abort with a library assertion. This error has been fixed and recursive calls to dlopen() no longer crash or abort. (BZ#1173469)

All glibc users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated libvirt packages that fix one security issue and three bugs are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.

It was found that when the VIR_DOMAIN_XML_MIGRATABLE flag was used, the QEMU driver implementation of the virDomainGetXMLDesc() function could bypass the restrictions of the VIR_DOMAIN_XML_SECURE flag. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to leak certain limited information from the domain XML data. (CVE-2014-7823)

This issue was discovered by Eric Blake of Red Hat.

This update also fixes the following bugs :

* In Red Hat Enterprise Linux 6, libvirt relies on the QEMU emulator to supply the error message when an active commit is attempted.
However, with Red Hat Enterprise Linux 7, QEMU added support for an active commit, but an additional interaction from libvirt to fully enable active commits is still missing. As a consequence, attempts to perform an active commit caused libvirt to become unresponsive. With this update, libvirt has been fixed to detect an active commit by itself, and now properly declares the feature as unsupported. As a result, libvirt no longer hangs when an active commit is attempted and instead produces an error message.

Note that the missing libvirt interaction will be added in Red Hat Enterprise Linux 7.1, adding full support for active commits.
(BZ#1150379)

* Prior to this update, the libvirt API did not properly check whether a Discretionary Access Control (DAC) security label is non-NULL before trying to parse user/group ownership from it. In addition, the DAC security label of a transient domain that had just finished migrating to another host is in some cases NULL. As a consequence, when the virDomainGetBlockInfo API was called on such a domain, the libvirtd daemon sometimes terminated unexpectedly. With this update, libvirt properly checks DAC labels before trying to parse them, and libvirtd thus no longer crashes in the described scenario. (BZ#1171124)

* If a block copy operation was attempted while another block copy was already in progress to an explicit raw destination, libvirt previously stopped regarding the destination as raw. As a consequence, if the qemu.conf file was edited to allow file format probing, triggering the bug could allow a malicious guest to bypass sVirt protection by making libvirt regard the file as non-raw. With this update, libvirt has been fixed to consistently remember when a block copy destination is raw, and guests can no longer circumvent sVirt protection when the host is configured to allow format probing. (BZ#1149078)

All libvirt users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, libvirtd will be restarted automatically.

Updated ntp packages that fix several security issues are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The Network Time Protocol (NTP) is used to synchronize a computer's time with a referenced time source.

Multiple buffer overflow flaws were discovered in ntpd's crypto_recv(), ctl_putdata(), and configure() functions. A remote attacker could use either of these flaws to send a specially crafted request packet that could crash ntpd or, potentially, execute arbitrary code with the privileges of the ntp user. Note: the crypto_recv() flaw requires non-default configurations to be active, while the ctl_putdata() flaw, by default, can only be exploited via local attackers, and the configure() flaw requires additional authentication to exploit. (CVE-2014-9295)

It was found that ntpd automatically generated weak keys for its internal use if no ntpdc request authentication key was specified in the ntp.conf configuration file. A remote attacker able to match the configured IP restrictions could guess the generated key, and possibly use it to send ntpdc query or configuration requests. (CVE-2014-9293)

It was found that ntp-keygen used a weak method for generating MD5 keys. This could possibly allow an attacker to guess generated MD5 keys that could then be used to spoof an NTP client or server. Note:
it is recommended to regenerate any MD5 keys that had explicitly been generated with ntp-keygen; the default installation does not contain such keys). (CVE-2014-9294)

All ntp users are advised to upgrade to this updated package, which contains backported patches to resolve these issues. After installing the update, the ntpd daemon will restart automatically.

Updated ntp packages that fix several security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The Network Time Protocol (NTP) is used to synchronize a computer's time with a referenced time source.

Multiple buffer overflow flaws were discovered in ntpd's crypto_recv(), ctl_putdata(), and configure() functions. A remote attacker could use either of these flaws to send a specially crafted request packet that could crash ntpd or, potentially, execute arbitrary code with the privileges of the ntp user. Note: the crypto_recv() flaw requires non-default configurations to be active, while the ctl_putdata() flaw, by default, can only be exploited via local attackers, and the configure() flaw requires additional authentication to exploit. (CVE-2014-9295)

It was found that ntpd automatically generated weak keys for its internal use if no ntpdc request authentication key was specified in the ntp.conf configuration file. A remote attacker able to match the configured IP restrictions could guess the generated key, and possibly use it to send ntpdc query or configuration requests. (CVE-2014-9293)

It was found that ntp-keygen used a weak method for generating MD5 keys. This could possibly allow an attacker to guess generated MD5 keys that could then be used to spoof an NTP client or server. Note:
it is recommended to regenerate any MD5 keys that had explicitly been generated with ntp-keygen; the default installation does not contain such keys). (CVE-2014-9294)

A missing return statement in the receive() function could potentially allow a remote attacker to bypass NTP's authentication mechanism.
(CVE-2014-9296)

All ntp users are advised to upgrade to this updated package, which contains backported patches to resolve these issues. After installing the update, the ntpd daemon will restart automatically.

Updated glibc packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the Name Server Caching Daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

It was found that the wordexp() function would perform command substitution even when the WRDE_NOCMD flag was specified. An attacker able to provide specially crafted input to an application using the wordexp() function, and not sanitizing the input correctly, could potentially use this flaw to execute arbitrary commands with the credentials of the user running that application. (CVE-2014-7817)

This issue was discovered by Tim Waugh of the Red Hat Developer Experience Team.

This update also fixes the following bug :

* Prior to this update, if a file stream that was opened in append mode and its underlying file descriptor were used at the same time and the file was truncated using the ftruncate() function on the file descriptor, a subsequent ftell() call on the stream incorrectly modified the file offset by seeking to the new end of the file. This update ensures that ftell() modifies the state of the file stream only when it is in append mode and its buffer is not empty. As a result, the described incorrect changes to the file offset no longer occur.
(BZ#1170187)

All glibc users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated jasper packages that fix three security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

JasPer is an implementation of Part 1 of the JPEG 2000 image compression standard.

Multiple off-by-one flaws, leading to heap-based buffer overflows, were found in the way JasPer decoded JPEG 2000 image files. A specially crafted file could cause an application using JasPer to crash or, possibly, execute arbitrary code. (CVE-2014-9029)

A heap-based buffer overflow flaw was found in the way JasPer decoded JPEG 2000 image files. A specially crafted file could cause an application using JasPer to crash or, possibly, execute arbitrary code. (CVE-2014-8138)

A double free flaw was found in the way JasPer parsed ICC color profiles in JPEG 2000 image files. A specially crafted file could cause an application using JasPer to crash or, possibly, execute arbitrary code. (CVE-2014-8137)

Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges Jose Duart of the Google Security Team as the original reporter.

All JasPer users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All applications using the JasPer libraries must be restarted for the update to take effect.

Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS (stack segment) fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system.
(CVE-2014-9322, Important)

Red Hat would like to thank Andy Lutomirski for reporting this issue.

All kernel users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The system must be rebooted for this update to take effect.

Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS (stack segment) fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system.
(CVE-2014-9322, Important)

Red Hat would like to thank Andy Lutomirski for reporting this issue.

All kernel users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The system must be rebooted for this update to take effect.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS (stack segment) fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system.
(CVE-2014-9322, Important)

* A flaw was found in the way the Linux kernel's SCTP implementation handled malformed or duplicate Address Configuration Change Chunks (ASCONF). A remote attacker could use either of these flaws to crash the system. (CVE-2014-3673, CVE-2014-3687, Important)

* A flaw was found in the way the Linux kernel's SCTP implementation handled the association's output queue. A remote attacker could send specially crafted packets that would cause the system to use an excessive amount of memory, leading to a denial of service.
(CVE-2014-3688, Important)

* A stack overflow flaw caused by infinite recursion was found in the way the Linux kernel's UDF file system implementation processed indirect ICBs. An attacker with physical access to the system could use a specially crafted UDF image to crash the system. (CVE-2014-6410, Low)

* It was found that the Linux kernel's networking implementation did not correctly handle the setting of the keepalive socket option on raw sockets. A local user able to create a raw socket could use this flaw to crash the system. (CVE-2012-6657, Low)

* It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags.
An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low)

Red Hat would like to thank Andy Lutomirski for reporting CVE-2014-9322. The CVE-2014-3673 issue was discovered by Liu Wei of Red Hat.

Bug fixes :

* This update fixes a race condition issue between the sock_queue_err_skb function and sk_forward_alloc handling in the socket error queue (MSG_ERRQUEUE), which could occasionally cause the kernel, for example when using PTP, to incorrectly track allocated memory for the error queue, in which case a traceback would occur in the system log. (BZ#1155427)

* The zcrypt device driver did not detect certain crypto cards and the related domains for crypto adapters on System z and s390x architectures. Consequently, it was not possible to run the system on new crypto hardware. This update enables toleration mode for such devices so that the system can make use of newer crypto hardware.
(BZ#1158311)

* After mounting and unmounting an XFS file system several times consecutively, the umount command occasionally became unresponsive.
This was caused by the xlog_cil_force_lsn() function that was not waiting for completion as expected. With this update, xlog_cil_force_lsn() has been modified to correctly wait for completion, thus fixing this bug. (BZ#1158325)

* When using the ixgbe adapter with disabled LRO and the tx-usec or rs-usec variables set to 0, transmit interrupts could not be set lower than the default of 8 buffered tx frames. Consequently, a delay of TCP transfer occurred. The restriction of a minimum of 8 buffered frames has been removed, and the TCP delay no longer occurs. (BZ#1158326)

* The offb driver has been updated for the QEMU standard VGA adapter, fixing an incorrect displaying of colors issue. (BZ#1158328)

* Under certain circumstances, when a discovered MTU expired, the IPv6 connection became unavailable for a short period of time. This bug has been fixed, and the connection now works as expected. (BZ#1161418)

* A low throughput occurred when using the dm-thin driver to write to unprovisioned or shared chunks for a thin pool with the chunk size bigger than the max_sectors_kb variable. (BZ#1161420)

* Large write workloads on thin LVs could cause the iozone and smallfile utilities to terminate unexpectedly. (BZ#1161421)

Updated mailx packages that fix two security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The mailx packages contain a mail user agent that is used to manage mail using scripts.

A flaw was found in the way mailx handled the parsing of email addresses. A syntactically valid email address could allow a local attacker to cause mailx to execute arbitrary shell commands through shell meta-characters and the direct command execution functionality.
(CVE-2004-2771, CVE-2014-7844)

Note: Applications using mailx to send email to addresses obtained from untrusted sources will still remain vulnerable to other attacks if they accept email addresses which start with '-' (so that they can be confused with mailx options). To counteract this issue, this update also introduces the '--' option, which will treat the remaining command line arguments as email addresses.

All mailx users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated bind97 packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.

A denial of service flaw was found in the way BIND followed DNS delegations. A remote attacker could use a specially crafted zone containing a large number of referrals which, when looked up and processed, would cause named to use excessive amounts of memory or crash. (CVE-2014-8500)

All bind97 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the BIND daemon (named) will be restarted automatically.

Updated bind packages that fix one security issue are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.

A denial of service flaw was found in the way BIND followed DNS delegations. A remote attacker could use a specially crafted zone containing a large number of referrals which, when looked up and processed, would cause named to use excessive amounts of memory or crash. (CVE-2014-8500)

All bind users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the BIND daemon (named) will be restarted automatically.

Updated xorg-x11-server packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

X.Org is an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.

Multiple integer overflow flaws and out-of-bounds write flaws were found in the way the X.Org server calculated memory requirements for certain X11 core protocol and GLX extension requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server or, potentially, execute arbitrary code with root privileges. (CVE-2014-8092, CVE-2014-8093, CVE-2014-8098)

It was found that the X.Org server did not properly handle SUN-DES-1 (Secure RPC) authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request. (CVE-2014-8091)

Multiple out-of-bounds access flaws were found in the way the X.Org server calculated memory requirements for certain requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server, or leak memory contents to the client.
(CVE-2014-8097)

An integer overflow flaw was found in the way the X.Org server calculated memory requirements for certain DRI2 extension requests. A malicious, authenticated client could use this flaw to crash the X.Org server. (CVE-2014-8094)

Multiple out-of-bounds access flaws were found in the way the X.Org server calculated memory requirements for certain requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server. (CVE-2014-8095, CVE-2014-8096, CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102, CVE-2014-8103)

All xorg-x11-server users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated xorg-x11-server packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

X.Org is an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.

Multiple integer overflow flaws and out-of-bounds write flaws were found in the way the X.Org server calculated memory requirements for certain X11 core protocol and GLX extension requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server or, potentially, execute arbitrary code with root privileges. (CVE-2014-8092, CVE-2014-8093, CVE-2014-8098)

It was found that the X.Org server did not properly handle SUN-DES-1 (Secure RPC) authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request. (CVE-2014-8091)

Multiple out-of-bounds access flaws were found in the way the X.Org server calculated memory requirements for certain requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server, or leak memory contents to the client.
(CVE-2014-8097)

Multiple out-of-bounds access flaws were found in the way the X.Org server calculated memory requirements for certain requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server. (CVE-2014-8095, CVE-2014-8096, CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102)

All xorg-x11-server users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Updated rpm packages that fix two security issues are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The RPM Package Manager (RPM) is a powerful command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages. Each software package consists of an archive of files along with information about the package such as its version, description, and other information.

It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely.
Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation.
(CVE-2013-6435)

It was found that RPM could encounter an integer overflow, leading to a stack-based buffer overflow, while parsing a crafted CPIO header in the payload section of an RPM file. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation. (CVE-2014-8118)

These issues were discovered by Florian Weimer of Red Hat Product Security.

All rpm users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running applications linked against the RPM library must be restarted for this update to take effect.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way the Linux kernel's SCTP implementation handled malformed or duplicate Address Configuration Change Chunks (ASCONF). A remote attacker could use either of these flaws to crash the system. (CVE-2014-3673, CVE-2014-3687, Important)

* A flaw was found in the way the Linux kernel's SCTP implementation handled the association's output queue. A remote attacker could send specially crafted packets that would cause the system to use an excessive amount of memory, leading to a denial of service.
(CVE-2014-3688, Important)

* Two flaws were found in the way the Apple Magic Mouse/Trackpad multi-touch driver and the Minibox PicoLCD driver handled invalid HID reports. An attacker with physical access to the system could use these flaws to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-3181, CVE-2014-3186, Moderate)

* A memory corruption flaw was found in the way the USB ConnectTech WhiteHEAT serial driver processed completion commands sent via USB Request Blocks buffers. An attacker with physical access to the system could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-3185, Moderate)

* A flaw was found in the way the Linux kernel's keys subsystem handled the termination condition in the associative array garbage collection functionality. A local, unprivileged user could use this flaw to crash the system. (CVE-2014-3631, Moderate)

* Multiple flaws were found in the way the Linux kernel's ALSA implementation handled user controls. A local, privileged user could use either of these flaws to crash the system. (CVE-2014-4654, CVE-2014-4655, CVE-2014-4656, Moderate)

* A flaw was found in the way the Linux kernel's VFS subsystem handled reference counting when performing unmount operations on symbolic links. A local, unprivileged user could use this flaw to exhaust all available memory on the system or, potentially, trigger a use-after-free error, resulting in a system crash or privilege escalation. (CVE-2014-5045, Moderate)

* A flaw was found in the way the get_dumpable() function return value was interpreted in the ptrace subsystem of the Linux kernel. When 'fs.suid_dumpable' was set to 2, a local, unprivileged local user could use this flaw to bypass intended ptrace restrictions and obtain potentially sensitive information. (CVE-2013-2929, Low)

* A stack overflow flaw caused by infinite recursion was found in the way the Linux kernel's UDF file system implementation processed indirect ICBs. An attacker with physical access to the system could use a specially crafted UDF image to crash the system. (CVE-2014-6410, Low)

* An information leak flaw in the way the Linux kernel handled media device enumerate entities IOCTL requests could allow a local user able to access the /dev/media0 device file to leak kernel memory bytes.
(CVE-2014-1739, Low)

* An out-of-bounds read flaw in the Logitech Unifying receiver driver could allow an attacker with physical access to the system to crash the system or, potentially, escalate their privileges on the system.
(CVE-2014-3182, Low)

* Multiple out-of-bounds write flaws were found in the way the Cherry Cymotion keyboard driver, KYE/Genius device drivers, Logitech device drivers, Monterey Genius KB29E keyboard driver, Petalynx Maxter remote control driver, and Sunplus wireless desktop driver handled invalid HID reports. An attacker with physical access to the system could use either of these flaws to write data past an allocated memory buffer.
(CVE-2014-3184, Low)

* An information leak flaw was found in the RAM Disks Memory Copy (rd_mcp) back end driver of the iSCSI Target subsystem could allow a privileged user to leak the contents of kernel memory to an iSCSI initiator remote client. (CVE-2014-4027, Low)

* An information leak flaw in the Linux kernel's ALSA implementation could allow a local, privileged user to leak kernel memory to user space. (CVE-2014-4652, Low)

Updated rpm packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The RPM Package Manager (RPM) is a powerful command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages. Each software package consists of an archive of files along with information about the package such as its version, description, and other information.

It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely.
Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation.
(CVE-2013-6435)

This issue was discovered by Florian Weimer of Red Hat Product Security.

All rpm users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications linked against the RPM library must be restarted for this update to take effect.

Updated kernel packages that fix one security issue and three bugs are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* It was found that the permission checks performed by the Linux kernel when a netlink message was received were not sufficient. A local, unprivileged user could potentially bypass these restrictions by passing a netlink socket as stdout or stderr to a more privileged process and altering the output of this process. (CVE-2014-0181, Moderate)

Red Hat would like to thank Andy Lutomirski for reporting this issue.

This update also fixes the following bugs :

* Previously, the kernel did not successfully deliver multicast packets when the multicast querier was disabled. Consequently, the corosync utility terminated unexpectedly and the affected storage node did not join its intended cluster. With this update, multicast packets are delivered properly when the multicast querier is disabled, and corosync handles the node as expected. (BZ#902454)

* Previously, the kernel wrote the metadata contained in all system information blocks on a single page of the /proc/sysinfo file.
However, when the machine configuration was very extensive and the data did not fit on a single page, the system overwrote random memory regions, which in turn caused data corruption when reading the /proc/sysconf file. With this update, /proc/sysinfo automatically allocates a larger buffer if the data output does not fit the current buffer, which prevents the data corruption. (BZ#1131283)

* Prior to this update, the it_real_fn() function did not, in certain cases, successfully acquire the SIGLOCK signal when the do_setitimer() function used the ITIMER_REAL timer. As a consequence, the current process entered an endless loop and became unresponsive. This update fixes the bug and it_real_fn() no longer causes the kernel to become unresponsive. (BZ#1134654)

All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

An updated wpa_supplicant package that fixes one security issue is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The wpa_supplicant package contains an 802.1X Supplicant with support for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication methods. It implements key negotiation with a WPA Authenticator for client stations and controls the roaming and IEEE 802.11 authentication and association of the WLAN driver.

A command injection flaw was found in the way the wpa_cli utility executed action scripts. If wpa_cli was run in daemon mode to execute an action script (specified using the -a command line option), and wpa_supplicant was configured to connect to a P2P group, malicious P2P group parameters could cause wpa_cli to execute arbitrary code.
(CVE-2014-3686)

Red Hat would like to thank Jouni Malinen for reporting this issue.

All wpa_supplicant users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

Updated nss, nss-util, and nss-softokn packages that contain a patch to mitigate the CVE-2014-3566 issue, fix a number of bugs, and add various enhancements are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important security impact.

Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. Netscape Portable Runtime (NSPR) provides platform independence for non-GUI operating system facilities.

This update adds support for the TLS Fallback Signaling Cipher Suite Value (TLS_FALLBACK_SCSV), which can be used to prevent protocol downgrade attacks against applications which re-connect using a lower SSL/TLS protocol version when the initial connection indicating the highest supported protocol version fails.

This can prevent a forceful downgrade of the communication to SSL 3.0.
The SSL 3.0 protocol was found to be vulnerable to the padding oracle attack when using block cipher suites in cipher block chaining (CBC) mode. This issue is identified as CVE-2014-3566, and also known under the alias POODLE. This SSL 3.0 protocol flaw will not be addressed in a future update; it is recommended that users configure their applications to require at least TLS protocol version 1.0 for secure communication.

For additional information about this flaw, see the Knowledgebase article at https://access.redhat.com/articles/1232123

The nss, nss-util, and nss-softokn packages have been upgraded to upstream version 3.16.2.3, which provides a number of bug fixes and enhancements over the previous version, and adds the support for Mozilla Firefox 31.3. (BZ#1158159, BZ#1165003, BZ#1165525)

Users of nss, nss-util, and nss-softokn are advised to upgrade to these updated packages, which contain a backported patch to mitigate the CVE-2014-3566 issue, fix these bugs, and add these enhancements.
After installing this update, applications using NSS or NSPR must be restarted for this update to take effect.

An updated thunderbird package that fixes multiple security issues is now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2014-1587, CVE-2014-1590, CVE-2014-1592, CVE-2014-1593)

A flaw was found in the Alarm API, which could allow applications to schedule actions to be run in the future. A malicious web application could use this flaw to bypass the same-origin policy. (CVE-2014-1594)

Note: All of the above issues cannot be exploited by a specially crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed.

This update disables SSL 3.0 support by default in Thunderbird.
Details on how to re-enable SSL 3.0 support are available at:
https://access.redhat.com/articles/1284233

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Gary Kwong, Randell Jesup, Nils Ohlmeier, Jesse Ruderman, Max Jonas Werner, Joe Vennix, Berend-Jan Wever, Abhishek Arya, and Boris Zbarsky as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security advisories for Thunderbird 31.3.0. You can find a link to the Mozilla advisories in the References section of this erratum.

All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 31.3.0, which corrects these issues.
After installing the update, Thunderbird must be restarted for the changes to take effect.

Updated firefox packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2014-1587, CVE-2014-1590, CVE-2014-1592, CVE-2014-1593)

A flaw was found in the Alarm API, which could allow applications to schedule actions to be run in the future. A malicious web application could use this flaw to bypass the same-origin policy. (CVE-2014-1594)

This update disables SSL 3.0 support by default in Firefox. Details on how to re-enable SSL 3.0 support are available at:
https://access.redhat.com/articles/1283153

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Gary Kwong, Randell Jesup, Nils Ohlmeier, Jesse Ruderman, Max Jonas Werner, Joe Vennix, Berend-Jan Wever, Abhishek Arya, and Boris Zbarsky as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 31.3.0 ESR. You can find a link to the Mozilla advisories in the References section of this erratum.

All Firefox users should upgrade to these updated packages, which contain Firefox version 31.3.0 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Updated ruby packages that fix three security issues are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.

Multiple denial of service flaws were found in the way the Ruby REXML XML parser performed expansion of parameter entities. A specially crafted XML document could cause REXML to use an excessive amount of CPU and memory. (CVE-2014-8080, CVE-2014-8090)

A stack-based buffer overflow was found in the implementation of the Ruby Array pack() method. When performing base64 encoding, a single byte could be written past the end of the buffer, possibly causing Ruby to crash. (CVE-2014-4975)

The CVE-2014-8090 issue was discovered by Red Hat Product Security.

All ruby users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of Ruby need to be restarted for this update to take effect.

Updated ruby packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.

Multiple denial of service flaws were found in the way the Ruby REXML XML parser performed expansion of parameter entities. A specially crafted XML document could cause REXML to use an excessive amount of CPU and memory. (CVE-2014-8080, CVE-2014-8090)

The CVE-2014-8090 issue was discovered by Red Hat Product Security.

All ruby users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of Ruby need to be restarted for this update to take effect.

Updated libXfont packages that fix three security issues are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The libXfont packages provide the X.Org libXfont runtime library.
X.Org is an open source implementation of the X Window System.

A use-after-free flaw was found in the way libXfont processed certain font files when attempting to add a new directory to the font path. A malicious, local user could exploit this issue to potentially execute arbitrary code with the privileges of the X.Org server.
(CVE-2014-0209)

Multiple out-of-bounds write flaws were found in the way libXfont parsed replies received from an X.org font server. A malicious X.org server could cause an X client to crash or, possibly, execute arbitrary code with the privileges of the X.Org server.
(CVE-2014-0210, CVE-2014-0211)

Red Hat would like to thank the X.org project for reporting these issues. Upstream acknowledges Ilja van Sprundel as the original reporter.

Users of libXfont should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running X.Org server instances must be restarted for the update to take effect.

Updated libxml2 packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The libxml2 library is a development toolbox providing the implementation of various XML standards.

A denial of service flaw was found in libxml2, a library providing support to read, modify and write XML and HTML files. A remote attacker could provide a specially crafted XML file that, when processed by an application using libxml2, would lead to excessive CPU consumption (denial of service) based on excessive entity substitutions, even if entity substitution was disabled, which is the parser default behavior. (CVE-2014-3660)

All libxml2 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The desktop must be restarted (log out, then log back in) for this update to take effect.

Updated libvirt packages that fix three security issues and one bug are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.

An out-of-bounds read flaw was found in the way libvirt's qemuDomainGetBlockIoTune() function looked up the disk index in a non-persistent (live) disk configuration while a persistent disk configuration was being indexed. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to crash libvirtd or, potentially, leak memory from the libvirtd process.
(CVE-2014-3633)

A denial of service flaw was found in the way libvirt's virConnectListAllDomains() function computed the number of used domains. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to make any domain operations within libvirt unresponsive. (CVE-2014-3657)

It was found that when the VIR_DOMAIN_XML_MIGRATABLE flag was used, the QEMU driver implementation of the virDomainGetXMLDesc() function could bypass the restrictions of the VIR_DOMAIN_XML_SECURE flag. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to leak certain limited information from the domain XML data. (CVE-2014-7823)

The CVE-2014-3633 issue was discovered by Luyao Huang of Red Hat.

This update also fixes the following bug :

When dumping migratable XML configuration of a domain, libvirt removes some automatically added devices for compatibility with older libvirt releases. If such XML is passed to libvirt as a domain XML that should be used during migration, libvirt checks this XML for compatibility with the internally stored configuration of the domain. However, prior to this update, these checks failed because of devices that were missing (the same devices libvirt removed). As a consequence, migration with user-supplied migratable XML failed. Since this feature is used by OpenStack, migrating QEMU/KVM domains with OpenStack always failed. With this update, before checking domain configurations for compatibility, libvirt transforms both user-supplied and internal configuration into a migratable form (automatically added devices are removed) and checks those instead. Thus, no matter whether the user-supplied configuration was generated as migratable or not, libvirt does not err about missing devices, and migration succeeds as expected. (BZ#1155564)

All libvirt users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, libvirtd will be restarted automatically.

Updated libXfont packages that fix three security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The libXfont packages provide the X.Org libXfont runtime library.
X.Org is an open source implementation of the X Window System.

A use-after-free flaw was found in the way libXfont processed certain font files when attempting to add a new directory to the font path. A malicious, local user could exploit this issue to potentially execute arbitrary code with the privileges of the X.Org server.
(CVE-2014-0209)

Multiple out-of-bounds write flaws were found in the way libXfont parsed replies received from an X.org font server. A malicious X.org server could cause an X client to crash or, possibly, execute arbitrary code with the privileges of the X.Org server.
(CVE-2014-0210, CVE-2014-0211)

Red Hat would like to thank the X.org project for reporting these issues. Upstream acknowledges Ilja van Sprundel as the original reporter.

Users of libXfont should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running X.Org server instances must be restarted for the update to take effect.

Updated mariadb packages that fix several security issues are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

MariaDB is a multi-user, multi-threaded SQL database server that is binary compatible with MySQL.

This update fixes several vulnerabilities in the MariaDB database server. Information about these flaws can be found on the Oracle Critical Patch Update Advisory page, listed in the References section.
(CVE-2014-2494, CVE-2014-4207, CVE-2014-4243, CVE-2014-4258, CVE-2014-4260, CVE-2014-4287, CVE-2014-4274, CVE-2014-6463, CVE-2014-6464, CVE-2014-6469, CVE-2014-6484, CVE-2014-6505, CVE-2014-6507, CVE-2014-6520, CVE-2014-6530, CVE-2014-6551, CVE-2014-6555, CVE-2014-6559)

These updated packages upgrade MariaDB to version 5.5.40. Refer to the MariaDB Release Notes listed in the References section for a complete list of changes.

All MariaDB users should upgrade to these updated packages, which correct these issues. After installing this update, the MariaDB server daemon (mysqld) will be restarted automatically.

Updated mysql55-mysql packages that fix several security issues are now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon (mysqld) and many client programs and libraries.

This update fixes several vulnerabilities in the MySQL database server. Information about these flaws can be found on the Oracle Critical Patch Update Advisory page, listed in the References section.
(CVE-2014-2494, CVE-2014-4207, CVE-2014-4243, CVE-2014-4258, CVE-2014-4260, CVE-2014-4287, CVE-2014-4274, CVE-2014-6463, CVE-2014-6464, CVE-2014-6469, CVE-2014-6484, CVE-2014-6505, CVE-2014-6507, CVE-2014-6520, CVE-2014-6530, CVE-2014-6551, CVE-2014-6555, CVE-2014-6559)

These updated packages upgrade MySQL to version 5.5.40. Refer to the MySQL Release Notes listed in the References section for a complete list of changes.

All MySQL users should upgrade to these updated packages, which correct these issues. After installing this update, the MySQL server daemon (mysqld) will be restarted automatically.

Updated gnutls packages that fix one security issue are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). The gnutls packages also include the libtasn1 library, which provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions.

An out-of-bounds memory write flaw was found in the way GnuTLS parsed certain ECC (Elliptic Curve Cryptography) certificates or certificate signing requests (CSR). A malicious user could create a specially crafted ECC certificate or a certificate signing request that, when processed by an application compiled against GnuTLS (for example, certtool), could cause that application to crash or execute arbitrary code with the permissions of the user running the application.
(CVE-2014-8564)

Red Hat would like to thank GnuTLS upstream for reporting this issue.
Upstream acknowledges Sean Burford as the original reporter.

All gnutls users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For the update to take effect, all applications linked to the GnuTLS or libtasn1 library must be restarted.

Updated kdenetwork packages that fix three security issues are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kdenetwork packages contain networking applications for the K Desktop Environment (KDE). Krfb Desktop Sharing, which is a part of the kdenetwork package, is a server application that allows session sharing between users. Krfb uses the LibVNCServer library.

A NULL pointer dereference flaw was found in the way LibVNCServer handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client. (CVE-2014-6053)

A divide-by-zero flaw was found in the way LibVNCServer handled the scaling factor when it was set to '0'. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client.
(CVE-2014-6054)

Two stack-based buffer overflow flaws were found in the way LibVNCServer handled file transfers. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client.
(CVE-2014-6055)

Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges Nicolas Ruff as the original reporter.

Note: Prior to this update, the kdenetwork packages used an embedded copy of the LibVNCServer library. With this update, the kdenetwork packages have been modified to use the system LibVNCServer packages.
Therefore, the update provided by RHSA-2014:1826 must be installed to fully address the issues in krfb described above.

All kdenetwork users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of the krfb server must be restarted for this update to take effect.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A race condition flaw was found in the way the Linux kernel's KVM subsystem handled PIT (Programmable Interval Timer) emulation. A guest user who has access to the PIT I/O ports could use this flaw to crash the host. (CVE-2014-3611, Important)

* A memory corruption flaw was found in the way the USB ConnectTech WhiteHEAT serial driver processed completion commands sent via USB Request Blocks buffers. An attacker with physical access to the system could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-3185, Moderate)

* It was found that the Linux kernel's KVM subsystem did not handle the VM exits gracefully for the invept (Invalidate Translations Derived from EPT) and invvpid (Invalidate Translations Based on VPID) instructions. On hosts with an Intel processor and invept/invppid VM exit support, an unprivileged guest user could use these instructions to crash the guest. (CVE-2014-3645, CVE-2014-3646, Moderate)

Red Hat would like to thank Lars Bull of Google for reporting CVE-2014-3611, and the Advanced Threat Research team at Intel Security for reporting CVE-2014-3645 and CVE-2014-3646.

This update also fixes the following bugs :

* This update fixes several race conditions between PCI error recovery callbacks and potential calls of the ifup and ifdown commands in the tg3 driver. When triggered, these race conditions could cause a kernel crash. (BZ#1142570)

* Previously, GFS2 failed to unmount a sub-mounted GFS2 file system if its parent was also a GFS2 file system. This problem has been fixed by adding the appropriate d_op->d_hash() routine call for the last component of the mount point path in the path name lookup mechanism code (namei). (BZ#1145193)

* Due to previous changes in the virtio-net driver, a Red Hat Enterprise Linux 6.6 guest was unable to boot with the 'mgr_rxbuf=off' option specified. This was caused by providing the page_to_skb() function with an incorrect packet length in the driver's Rx path. This problem has been fixed and the guest in the described scenario can now boot successfully. (BZ#1148693)

* When using one of the newer IPSec Authentication Header (AH) algorithms with Openswan, a kernel panic could occur. This happened because the maximum truncated ICV length was too small. To fix this problem, the MAX_AH_AUTH_LEN parameter has been set to 64.
(BZ#1149083)

* A bug in the IPMI driver caused the kernel to panic when an IPMI interface was removed using the hotmod script. The IPMI driver has been fixed to properly clean the relevant data when removing an IPMI interface. (BZ#1149578)

* Due to a bug in the IPMI driver, the kernel could panic when adding an IPMI interface that was previously removed using the hotmod script.
This update fixes this bug by ensuring that the relevant shadow structure is initialized at the right time. (BZ#1149580)

All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Updated libvncserver packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

LibVNCServer is a library that allows for easy creation of VNC server or client functionality.

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way screen sizes were handled by LibVNCServer. A malicious VNC server could use this flaw to cause a client to crash or, potentially, execute arbitrary code in the client. (CVE-2014-6051)

A NULL pointer dereference flaw was found in LibVNCServer's framebuffer setup. A malicious VNC server could use this flaw to cause a VNC client to crash. (CVE-2014-6052)

A NULL pointer dereference flaw was found in the way LibVNCServer handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client. (CVE-2014-6053)

A divide-by-zero flaw was found in the way LibVNCServer handled the scaling factor when it was set to '0'. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client.
(CVE-2014-6054)

Two stack-based buffer overflow flaws were found in the way LibVNCServer handled file transfers. A remote attacker could use this flaw to crash the VNC server using a malicious VNC client.
(CVE-2014-6055)

Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges Nicolas Ruff as the original reporter.

All libvncserver users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
All running applications linked against libvncserver must be restarted for this update to take effect.

Updated rsyslog7 packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The rsyslog7 packages provide an enhanced, multi-threaded syslog daemon that supports writing to relational databases, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control.

A flaw was found in the way rsyslog handled invalid log message priority values. In certain configurations, a local attacker, or a remote attacker able to connect to the rsyslog port, could use this flaw to crash the rsyslog daemon or, potentially, execute arbitrary code as the user running the rsyslog daemon. (CVE-2014-3634)

Red Hat would like to thank Rainer Gerhards of rsyslog upstream for reporting this issue.

All rsyslog7 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the rsyslog service will be restarted automatically.

Updated java-1.8.0-openjdk packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.

It was discovered that the Libraries component in OpenJDK failed to properly handle ZIP archives that contain entries with a NUL byte used in the file names. An untrusted Java application or applet could use this flaw to bypass Java sandbox restrictions. (CVE-2014-6562)

Multiple flaws were discovered in the Libraries, 2D, and Hotspot components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass certain Java sandbox restrictions.
(CVE-2014-6506, CVE-2014-6531, CVE-2014-6502, CVE-2014-6511, CVE-2014-6504, CVE-2014-6519)

It was discovered that the StAX XML parser in the JAXP component in OpenJDK performed expansion of external parameter entities even when external entity substitution was disabled. A remote attacker could use this flaw to perform XML eXternal Entity (XXE) attack against applications using the StAX parser to parse untrusted XML documents.
(CVE-2014-6517)

It was discovered that the Hotspot component in OpenJDK failed to properly handle malformed Shared Archive files. A local attacker able to modify a Shared Archive file used by a virtual machine of a different user could possibly use this flaw to escalate their privileges. (CVE-2014-6468)

It was discovered that the DatagramSocket implementation in OpenJDK failed to perform source address checks for packets received on a connected socket. A remote attacker could use this flaw to have their packets processed as if they were received from the expected source.
(CVE-2014-6512)

It was discovered that the TLS/SSL implementation in the JSSE component in OpenJDK failed to properly verify the server identity during the renegotiation following session resumption, making it possible for malicious TLS/SSL servers to perform a Triple Handshake attack against clients using JSSE and client certificate authentication. (CVE-2014-6457)

It was discovered that the CipherInputStream class implementation in OpenJDK did not properly handle certain exceptions. This could possibly allow an attacker to affect the integrity of an encrypted stream handled by this class. (CVE-2014-6558)

The CVE-2014-6512 was discovered by Florian Weimer of Red Hat Product Security.

All users of java-1.8.0-openjdk are advised to upgrade to these updated packages, which resolve these issues. All running instances of OpenJDK Java must be restarted for the update to take effect.

Updated file packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The 'file' command is used to identify a particular file according to the type of data contained in the file. The command can identify various file types, including ELF binaries, system libraries, RPM packages, and different graphics formats.

Multiple denial of service flaws were found in the way file parsed certain Composite Document Format (CDF) files. A remote attacker could use either of these flaws to crash file, or an application using file, via a specially crafted CDF file. (CVE-2014-0237, CVE-2014-0238, CVE-2014-3479, CVE-2014-3480, CVE-2012-1571)

Two denial of service flaws were found in the way file handled indirect and search rules. A remote attacker could use either of these flaws to cause file, or an application using file, to crash or consume an excessive amount of CPU. (CVE-2014-1943, CVE-2014-2270)

This update also fixes the following bugs :

* Previously, the output of the 'file' command contained redundant white spaces. With this update, the new STRING_TRIM flag has been introduced to remove the unnecessary white spaces. (BZ#664513)

* Due to a bug, the 'file' command could incorrectly identify an XML document as a LaTex document. The underlying source code has been modified to fix this bug and the command now works as expected.
(BZ#849621)

* Previously, the 'file' command could not recognize .JPG files and incorrectly labeled them as 'Minix filesystem'. This bug has been fixed and the command now properly detects .JPG files. (BZ#873997)

* Under certain circumstances, the 'file' command incorrectly detected NETpbm files as 'x86 boot sector'. This update applies a patch to fix this bug and the command now detects NETpbm files as expected.
(BZ#884396)

* Previously, the 'file' command incorrectly identified ASCII text files as a .PIC image file. With this update, a patch has been provided to address this bug and the command now correctly recognizes ASCII text files. (BZ#980941)

* On 32-bit PowerPC systems, the 'from' field was missing from the output of the 'file' command. The underlying source code has been modified to fix this bug and 'file' output now contains the 'from' field as expected. (BZ#1037279)

* The 'file' command incorrectly detected text files as 'RRDTool DB version ool - Round Robin Database Tool'. This update applies a patch to fix this bug and the command now correctly detects text files.
(BZ#1064463)

* Previously, the 'file' command supported only version 1 and 2 of the QCOW format. As a consequence, file was unable to detect a 'qcow2 compat=1.1' file created on Red Hat Enterprise Linux 7. With this update, support for QCOW version 3 has been added so that the command now detects such files as expected. (BZ#1067771)

All file users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

ID	Name	Severity
81089	CentOS 7 : kernel (CESA-2015:0102)	high
81055	CentOS 6 / 7 : libyaml (CESA-2015:0100)	medium
81054	CentOS 6 : kernel (CESA-2015:0087)	medium
81026	CentOS 6 / 7 : glibc (CESA-2015:0092) (GHOST)	high
81025	CentOS 5 : glibc (CESA-2015:0090) (GHOST)	high
81005	CentOS 5 / 6 / 7 : java-1.6.0-openjdk (CESA-2015:0085) (POODLE)	low
80969	CentOS 6 / 7 : jasper (CESA-2015:0074)	high
80870	CentOS 6 : java-1.8.0-openjdk (CESA-2015:0069) (POODLE)	low
80869	CentOS 5 : java-1.7.0-openjdk (CESA-2015:0068) (POODLE)	low
80868	CentOS 6 / 7 : java-1.7.0-openjdk (CESA-2015:0067) (POODLE)	low
80867	CentOS 6 / 7 : openssl (CESA-2015:0066)	medium
80527	CentOS 5 / 6 : thunderbird (CESA-2015:0047)	high
80526	CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0046)	high
80400	CentOS 6 : glibc (CESA-2015:0016)	medium
80360	CentOS 7 : libvirt (CESA-2015:0008)	medium
80125	CentOS 5 : ntp (CESA-2014:2025)	high
80124	CentOS 6 / 7 : ntp (CESA-2014:2024)	high
80123	CentOS 7 : glibc (CESA-2014:2023)	medium
80107	CentOS 6 / 7 : jasper (CESA-2014:2021)	high
80106	CentOS 7 : kernel (CESA-2014:2010)	high
80105	CentOS 5 : kernel (CESA-2014:2008)	high
80088	CentOS 6 : kernel (CESA-2014:1997)	high
80056	CentOS 6 / 7 : mailx (CESA-2014:1999)	high
79881	CentOS 5 : bind97 (CESA-2014:1985)	high
79880	CentOS 5 / 6 / 7 : bind (CESA-2014:1984)	high
79879	CentOS 6 / 7 : xorg-x11-server (CESA-2014:1983)	medium
79878	CentOS 5 : xorg-x11-server (CESA-2014:1982)	medium
79877	CentOS 7 : rpm (CESA-2014:1976)	critical
79876	CentOS 7 : kernel (CESA-2014:1971)	high
79843	CentOS 5 / 6 : rpm (CESA-2014:1974)	high
79727	CentOS 5 : kernel (CESA-2014:1959)	low
79726	CentOS 7 : wpa_supplicant (CESA-2014:1956)	medium
79695	CentOS 5 / 6 / 7 : nss (CESA-2014:1948) (POODLE)	low
79694	CentOS 5 / 6 : thunderbird (CESA-2014:1924)	medium
79693	CentOS 5 / 6 / 7 : firefox (CESA-2014:1919)	medium
79643	CentOS 7 : ruby (CESA-2014:1912)	medium
79642	CentOS 6 : ruby (CESA-2014:1911)	medium
79563	CentOS 5 : libXfont (CESA-2014:1893)	high
79361	CentOS 5 : libxml2 (CESA-2014:1885)	medium
79338	CentOS 6 : libvirt (CESA-2014:1873)	medium
79313	CentOS 6 / 7 : libXfont (CESA-2014:1870)	high
79300	CentOS 7 : mariadb (CESA-2014:1861)	medium
79299	CentOS 5 : mysql55-mysql (CESA-2014:1859)	medium
79220	CentOS 7 : gnutls (CESA-2014:1846)	medium
79219	CentOS 7 : kdenetwork (CESA-2014:1827)	medium
79189	CentOS 6 : kernel (CESA-2014:1843)	medium
79188	CentOS 6 / 7 : libvncserver (CESA-2014:1826)	high
79187	CentOS 6 : rsyslog7 (CESA-2014:1654)	high
79186	CentOS 6 : java-1.8.0-openjdk (CESA-2014:1636)	high
79185	CentOS 6 : file (CESA-2014:1606)	medium

Detections

Analytics

CentOS Local Security Checks Family for Nessus

high

medium

medium

high

high

low

high

low

low

low

medium

high

high

medium

medium

high

high

medium

high

high

high

high

high

high

high

medium

medium

critical

high

high

low

medium

low

medium

medium

medium

medium

high

medium

medium

high

medium

medium

medium

medium

medium

high

high

high

medium