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

The Red Hat Security Response Team 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-2012-5614, CVE-2013-1506, CVE-2013-1521, CVE-2013-1531, CVE-2013-1532, CVE-2013-1544, CVE-2013-1548, CVE-2013-1552, CVE-2013-1555, CVE-2013-2375, CVE-2013-2378, CVE-2013-2389, CVE-2013-2391, CVE-2013-2392)

These updated packages upgrade MySQL to version 5.1.69. Refer to the MySQL release notes listed in the References section for a full 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 glibc packages that fix two security issues and two bugs are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having low 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 getaddrinfo() did not limit the amount of stack memory used during name resolution. An attacker able to make an application resolve an attacker-controlled hostname or IP address could possibly cause the application to exhaust all stack memory and crash. (CVE-2013-1914)

A flaw was found in the regular expression matching routines that process multibyte character input. If an application utilized the glibc regular expression matching mechanism, an attacker could provide specially crafted input that, when processed, would cause the application to crash. (CVE-2013-0242)

This update also fixes the following bugs :

* The improvements RHSA-2012:1207 made to the accuracy of floating point functions in the math library caused performance regressions for those functions. The performance regressions were analyzed and a fix was applied that retains the current accuracy but reduces the performance penalty to acceptable levels. Refer to Red Hat Knowledge solution 229993, linked to in the References, for further information.
(BZ#950535)

* It was possible that a memory location freed by the localization code could be accessed immediately after, resulting in a crash. The fix ensures that the application does not crash by avoiding the invalid memory access. (BZ#951493)

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

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

The Red Hat Security Response Team 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.

cURL provides the libcurl library and a command line tool for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

A flaw was found in the way libcurl matched domains associated with cookies. This could lead to cURL or an application linked against libcurl sending the wrong cookie if only part of the domain name matched the domain associated with the cookie, disclosing the cookie to unrelated hosts. (CVE-2013-1944)

Red Hat would like to thank the cURL project for reporting this issue.
Upstream acknowledges YAMADA Yasuharu as the original reporter.

Users of curl should upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using libcurl must be restarted for the update to take effect.

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

The Red Hat Security Response Team 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.

These packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit.

Multiple flaws were discovered in the font layout engine in the 2D component. An untrusted Java application or applet could possibly use these flaws to trigger Java Virtual Machine memory corruption.
(CVE-2013-1569, CVE-2013-2383, CVE-2013-2384)

Multiple improper permission check issues were discovered in the Beans, Libraries, JAXP, and RMI components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions. (CVE-2013-1558, CVE-2013-2422, CVE-2013-1518, CVE-2013-1557)

The previous default value of the java.rmi.server.useCodebaseOnly property permitted the RMI implementation to automatically load classes from remotely specified locations. An attacker able to connect to an application using RMI could use this flaw to make the application execute arbitrary code. (CVE-2013-1537)

Note: The fix for CVE-2013-1537 changes the default value of the property to true, restricting class loading to the local CLASSPATH and locations specified in the java.rmi.server.codebase property. Refer to Red Hat Bugzilla bug 952387 for additional details.

The 2D component did not properly process certain images. An untrusted Java application or applet could possibly use this flaw to trigger Java Virtual Machine memory corruption. (CVE-2013-2420)

It was discovered that the Hotspot component did not properly handle certain intrinsic frames, and did not correctly perform MethodHandle lookups. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions. (CVE-2013-2431, CVE-2013-2421)

It was discovered that JPEGImageReader and JPEGImageWriter in the ImageIO component did not protect against modification of their state while performing certain native code operations. An untrusted Java application or applet could possibly use these flaws to trigger Java Virtual Machine memory corruption. (CVE-2013-2429, CVE-2013-2430)

The JDBC driver manager could incorrectly call the toString() method in JDBC drivers, and the ConcurrentHashMap class could incorrectly call the defaultReadObject() method. An untrusted Java application or applet could possibly use these flaws to bypass Java sandbox restrictions. (CVE-2013-1488, CVE-2013-2426)

The sun.awt.datatransfer.ClassLoaderObjectInputStream class may incorrectly invoke the system class loader. An untrusted Java application or applet could possibly use this flaw to bypass certain Java sandbox restrictions. (CVE-2013-0401)

Flaws were discovered in the Network component's InetAddress serialization, and the 2D component's font handling. An untrusted Java application or applet could possibly use these flaws to crash the Java Virtual Machine. (CVE-2013-2417, CVE-2013-2419)

The MBeanInstantiator class implementation in the OpenJDK JMX component did not properly check class access before creating new instances. An untrusted Java application or applet could use this flaw to create instances of non-public classes. (CVE-2013-2424)

It was discovered that JAX-WS could possibly create temporary files with insecure permissions. A local attacker could use this flaw to access temporary files created by an application using JAX-WS.
(CVE-2013-2415)

This erratum also upgrades the OpenJDK package to IcedTea6 1.11.10.
Refer to the NEWS file, linked to in the References, for further information.

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

The Red Hat Security Response Team 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.

Security :

* An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way the Intel i915 driver in the Linux kernel handled the allocation of the buffer used for relocation copies. A local user with console access could use this flaw to cause a denial of service or escalate their privileges. (CVE-2013-0913, Important)

* A buffer overflow flaw was found in the way UTF-8 characters were converted to UTF-16 in the utf8s_to_utf16s() function of the Linux kernel's FAT file system implementation. A local user able to mount a FAT file system with the 'utf8=1' option could use this flaw to crash the system or, potentially, to escalate their privileges.
(CVE-2013-1773, Important)

* A flaw was found in the way KVM handled guest time updates when the buffer the guest registered by writing to the MSR_KVM_SYSTEM_TIME machine state register (MSR) crossed a page boundary. A privileged guest user could use this flaw to crash the host or, potentially, escalate their privileges, allowing them to execute arbitrary code at the host kernel level. (CVE-2013-1796, Important)

* A potential use-after-free flaw was found in the way KVM handled guest time updates when the GPA (guest physical address) the guest registered by writing to the MSR_KVM_SYSTEM_TIME machine state register (MSR) fell into a movable or removable memory region of the hosting user-space process (by default, QEMU-KVM) on the host. If that memory region is deregistered from KVM using KVM_SET_USER_MEMORY_REGION and the allocated virtual memory reused, a privileged guest user could potentially use this flaw to escalate their privileges on the host. (CVE-2013-1797, Important)

* A flaw was found in the way KVM emulated IOAPIC (I/O Advanced Programmable Interrupt Controller). A missing validation check in the ioapic_read_indirect() function could allow a privileged guest user to crash the host, or read a substantial portion of host kernel memory.
(CVE-2013-1798, Important)

* A race condition in install_user_keyrings(), leading to a NULL pointer dereference, was found in the key management facility. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2013-1792, Moderate)

* A NULL pointer dereference in the XFRM implementation could allow a local user who has the CAP_NET_ADMIN capability to cause a denial of service. (CVE-2013-1826, Moderate)

* A NULL pointer dereference in the Datagram Congestion Control Protocol (DCCP) implementation could allow a local user to cause a denial of service. (CVE-2013-1827, Moderate)

* Information leak flaws in the XFRM implementation could allow a local user who has the CAP_NET_ADMIN capability to leak kernel stack memory to user-space. (CVE-2012-6537, Low)

* Two information leak flaws in the Asynchronous Transfer Mode (ATM) subsystem could allow a local, unprivileged user to leak kernel stack memory to user-space. (CVE-2012-6546, Low)

* An information leak was found in the TUN/TAP device driver in the networking implementation. A local user with access to a TUN/TAP virtual interface could use this flaw to leak kernel stack memory to user-space. (CVE-2012-6547, Low)

* An information leak in the Bluetooth implementation could allow a local user who has the CAP_NET_ADMIN capability to leak kernel stack memory to user-space. (CVE-2013-0349, Low)

* A use-after-free flaw was found in the tmpfs implementation. A local user able to mount and unmount a tmpfs file system could use this flaw to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-1767, Low)

* A NULL pointer dereference was found in the Linux kernel's USB Inside Out Edgeport Serial Driver implementation. An attacker with physical access to a system could use this flaw to cause a denial of service. (CVE-2013-1774, Low)

Red Hat would like to thank Andrew Honig of Google for reporting CVE-2013-1796, CVE-2013-1797, and CVE-2013-1798. CVE-2013-1792 was discovered by Mateusz Guzik of Red Hat EMEA GSS SEG Team.

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

The Red Hat Security Response Team 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.

These packages provide the OpenJDK 7 Java Runtime Environment and the OpenJDK 7 Software Development Kit.

Multiple flaws were discovered in the font layout engine in the 2D component. An untrusted Java application or applet could possibly use these flaws to trigger Java Virtual Machine memory corruption.
(CVE-2013-1569, CVE-2013-2383, CVE-2013-2384)

Multiple improper permission check issues were discovered in the Beans, Libraries, JAXP, and RMI components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions. (CVE-2013-1558, CVE-2013-2422, CVE-2013-2436, CVE-2013-1518, CVE-2013-1557)

The previous default value of the java.rmi.server.useCodebaseOnly property permitted the RMI implementation to automatically load classes from remotely specified locations. An attacker able to connect to an application using RMI could use this flaw to make the application execute arbitrary code. (CVE-2013-1537)

Note: The fix for CVE-2013-1537 changes the default value of the property to true, restricting class loading to the local CLASSPATH and locations specified in the java.rmi.server.codebase property. Refer to Red Hat Bugzilla bug 952387 for additional details.

The 2D component did not properly process certain images. An untrusted Java application or applet could possibly use this flaw to trigger Java Virtual Machine memory corruption. (CVE-2013-2420)

It was discovered that the Hotspot component did not properly handle certain intrinsic frames, and did not correctly perform access checks and MethodHandle lookups. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions.
(CVE-2013-2431, CVE-2013-2421, CVE-2013-2423)

It was discovered that JPEGImageReader and JPEGImageWriter in the ImageIO component did not protect against modification of their state while performing certain native code operations. An untrusted Java application or applet could possibly use these flaws to trigger Java Virtual Machine memory corruption. (CVE-2013-2429, CVE-2013-2430)

The JDBC driver manager could incorrectly call the toString() method in JDBC drivers, and the ConcurrentHashMap class could incorrectly call the defaultReadObject() method. An untrusted Java application or applet could possibly use these flaws to bypass Java sandbox restrictions. (CVE-2013-1488, CVE-2013-2426)

The sun.awt.datatransfer.ClassLoaderObjectInputStream class may incorrectly invoke the system class loader. An untrusted Java application or applet could possibly use this flaw to bypass certain Java sandbox restrictions. (CVE-2013-0401)

Flaws were discovered in the Network component's InetAddress serialization, and the 2D component's font handling. An untrusted Java application or applet could possibly use these flaws to crash the Java Virtual Machine. (CVE-2013-2417, CVE-2013-2419)

The MBeanInstantiator class implementation in the OpenJDK JMX component did not properly check class access before creating new instances. An untrusted Java application or applet could use this flaw to create instances of non-public classes. (CVE-2013-2424)

It was discovered that JAX-WS could possibly create temporary files with insecure permissions. A local attacker could use this flaw to access temporary files created by an application using JAX-WS.
(CVE-2013-2415)

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.

This erratum also upgrades the OpenJDK package to IcedTea7 2.3.9.
Refer to the NEWS file, linked to in the References, for further information.

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 icedtea-web packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 IcedTea-Web project provides a Java web browser plug-in and an implementation of Java Web Start, which is based on the Netx project.
It also contains a configuration tool for managing deployment settings for the plug-in and Web Start implementations.

It was discovered that the IcedTea-Web plug-in incorrectly used the same class loader instance for applets with the same value of the codebase attribute, even when they originated from different domains.
A malicious applet could use this flaw to gain information about and possibly manipulate applets from different domains currently running in the browser. (CVE-2013-1926)

The IcedTea-Web plug-in did not properly check the format of the downloaded Java Archive (JAR) files. This could cause the plug-in to execute code hidden in a file in a different format, possibly allowing attackers to execute code in the context of websites that allow uploads of specific file types, known as a GIFAR attack.
(CVE-2013-1927)

The CVE-2013-1926 issue was discovered by Jiri Vanek of the Red Hat OpenJDK Team, and CVE-2013-1927 was discovered by the Red Hat Security Response Team.

This erratum also upgrades IcedTea-Web to version 1.2.3. Refer to the NEWS file, linked to in the References, for further information.

All IcedTea-Web users should upgrade to these updated packages, which resolve these issues. Web browsers using the IcedTea-Web browser plug-in must be restarted for this update to take effect.

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

The Red Hat Security Response Team 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.

These packages provide the OpenJDK 7 Java Runtime Environment and the OpenJDK 7 Software Development Kit.

Multiple flaws were discovered in the font layout engine in the 2D component. An untrusted Java application or applet could possibly use these flaws to trigger Java Virtual Machine memory corruption.
(CVE-2013-1569, CVE-2013-2383, CVE-2013-2384)

Multiple improper permission check issues were discovered in the Beans, Libraries, JAXP, and RMI components in OpenJDK. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions. (CVE-2013-1558, CVE-2013-2422, CVE-2013-2436, CVE-2013-1518, CVE-2013-1557)

The previous default value of the java.rmi.server.useCodebaseOnly property permitted the RMI implementation to automatically load classes from remotely specified locations. An attacker able to connect to an application using RMI could use this flaw to make the application execute arbitrary code. (CVE-2013-1537)

Note: The fix for CVE-2013-1537 changes the default value of the property to true, restricting class loading to the local CLASSPATH and locations specified in the java.rmi.server.codebase property. Refer to Red Hat Bugzilla bug 952387 for additional details.

The 2D component did not properly process certain images. An untrusted Java application or applet could possibly use this flaw to trigger Java Virtual Machine memory corruption. (CVE-2013-2420)

It was discovered that the Hotspot component did not properly handle certain intrinsic frames, and did not correctly perform access checks and MethodHandle lookups. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions.
(CVE-2013-2431, CVE-2013-2421, CVE-2013-2423)

It was discovered that JPEGImageReader and JPEGImageWriter in the ImageIO component did not protect against modification of their state while performing certain native code operations. An untrusted Java application or applet could possibly use these flaws to trigger Java Virtual Machine memory corruption. (CVE-2013-2429, CVE-2013-2430)

The JDBC driver manager could incorrectly call the toString() method in JDBC drivers, and the ConcurrentHashMap class could incorrectly call the defaultReadObject() method. An untrusted Java application or applet could possibly use these flaws to bypass Java sandbox restrictions. (CVE-2013-1488, CVE-2013-2426)

The sun.awt.datatransfer.ClassLoaderObjectInputStream class may incorrectly invoke the system class loader. An untrusted Java application or applet could possibly use this flaw to bypass certain Java sandbox restrictions. (CVE-2013-0401)

Flaws were discovered in the Network component's InetAddress serialization, and the 2D component's font handling. An untrusted Java application or applet could possibly use these flaws to crash the Java Virtual Machine. (CVE-2013-2417, CVE-2013-2419)

The MBeanInstantiator class implementation in the OpenJDK JMX component did not properly check class access before creating new instances. An untrusted Java application or applet could use this flaw to create instances of non-public classes. (CVE-2013-2424)

It was discovered that JAX-WS could possibly create temporary files with insecure permissions. A local attacker could use this flaw to access temporary files created by an application using JAX-WS.
(CVE-2013-2415)

This erratum also upgrades the OpenJDK package to IcedTea7 2.3.9.
Refer to the NEWS file, linked to in the References, for further information.

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 krb5 packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third-party, the Key Distribution Center (KDC).

A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC processed certain TGS (Ticket-granting Server) requests. A remote, authenticated attacker could use this flaw to crash the KDC via a specially crafted TGS request. (CVE-2013-1416)

All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the krb5kdc daemon will be restarted automatically.

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

The Red Hat Security Response Team 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 kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* A flaw was found in the Xen netback driver implementation in the Linux kernel. A privileged guest user with access to a para-virtualized network device could use this flaw to cause a long loop in netback, leading to a denial of service that could potentially affect the entire system. (CVE-2013-0216, Moderate)

* A flaw was found in the Xen PCI device back-end driver implementation in the Linux kernel. A privileged guest user in a guest that has a PCI passthrough device could use this flaw to cause a denial of service that could potentially affect the entire system.
(CVE-2013-0231, Moderate)

* A NULL pointer dereference flaw was found in the IP packet transformation framework (XFRM) implementation in the Linux kernel. A local user who has the CAP_NET_ADMIN capability could use this flaw to cause a denial of service. (CVE-2013-1826, Moderate)

* Information leak flaws were found in the XFRM implementation in the Linux kernel. A local user who has the CAP_NET_ADMIN capability could use these flaws to leak kernel stack memory to user-space.
(CVE-2012-6537, Low)

* An information leak flaw was found in the logical link control (LLC) implementation in the Linux kernel. A local, unprivileged user could use this flaw to leak kernel stack memory to user-space.
(CVE-2012-6542, Low)

* Two information leak flaws were found in the Linux kernel's Asynchronous Transfer Mode (ATM) subsystem. A local, unprivileged user could use these flaws to leak kernel stack memory to user-space.
(CVE-2012-6546, Low)

* An information leak flaw was found in the TUN/TAP device driver in the Linux kernel's networking implementation. A local user with access to a TUN/TAP virtual interface could use this flaw to leak kernel stack memory to user-space. (CVE-2012-6547, Low)

Red Hat would like to thank the Xen project for reporting the CVE-2013-0216 and CVE-2013-0231 issues.

This update also fixes the following bugs :

* The IPv4 code did not correctly update the Maximum Transfer Unit (MTU) of the designed interface when receiving ICMP Fragmentation Needed packets. Consequently, a remote host did not respond correctly to ping attempts. With this update, the IPv4 code has been modified so the MTU of the designed interface is adjusted as expected in this situation. The ping command now provides the expected output.
(BZ#923353)

* Previously, the be2net code expected the last word of an MCC completion message from the firmware to be transferred by direct memory access (DMA) at once. However, this is not always true, and could therefore cause the BUG_ON() macro to be triggered in the be_mcc_compl_is_new() function, consequently leading to a kernel panic. The BUG_ON() macro has been removed from be_mcc_compl_is_new(), and the kernel panic no longer occurs in this scenario. (BZ#923910)

* Previously, the NFSv3 server incorrectly converted 64-bit cookies to 32-bit. Consequently, the cookies became invalid, which affected all file system operations depending on these cookies, such as the READDIR operation that is used to read entries from a directory. This led to various problems, such as exported directories being empty or displayed incorrectly, or an endless loop of the READDIRPLUS procedure which could potentially cause a buffer overflow. This update modifies knfsd code so that 64-bit cookies are now handled correctly and all file system operations work as expected. (BZ#924087)

Users should 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 389-ds-base packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 389 Directory Server is an LDAPv3 compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration.

It was found that the 389 Directory Server did not properly restrict access to entries when the 'nsslapd-allow-anonymous-access' configuration setting was set to 'rootdse'. An anonymous user could connect to the LDAP database and, if the search scope is set to BASE, obtain access to information outside of the rootDSE. (CVE-2013-1897)

This issue was discovered by Martin Kosek of Red Hat.

This update also fixes the following bugs :

* Previously, the schema-reload plug-in was not thread-safe.
Consequently, executing the schema-reload.pl script under heavy load could have caused the ns-slapd process to terminate unexpectedly with a segmentation fault. Currently, the schema-reload plug-in is re-designed so that it is thread-safe, and the schema-reload.pl script can be executed along with other LDAP operations. (BZ#929107)

* An out of scope problem for a local variable, in some cases, caused the modrdn operation to terminate unexpectedly with a segmentation fault. This update declares the local variable at the proper place of the function so it does not go out of scope, and the modrdn operation no longer crashes. (BZ#929111)

* A task manually constructed an exact value to be removed from the configuration if the 'replica-force-cleaning' option was used.
Consequently, the task configuration was not cleaned up, and every time the server was restarted, the task behaved in the described manner. This update searches the configuration for the exact value to delete, instead of manually building the value, and the task does not restart when the server is restarted. (BZ#929114)

* Previously, a NULL pointer dereference could have occurred when attempting to get effective rights on an entry that did not exist, leading to an unexpected termination due to a segmentation fault. This update checks for NULL entry pointers and returns the appropriate error. Now, attempts to get effective rights on an entry that does not exist no longer causes crashes, and the server returns the appropriate error message. (BZ#929115)

* A problem in the lock timing in the DNA plug-in caused a deadlock if the DNA operation was executed with other plug-ins. This update moves the release timing of the problematic lock, and the DNA plug-in does not cause the deadlock. (BZ#929196)

All 389-ds-base users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
After installing this update, the 389 server service will be restarted automatically.

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

The Red Hat Security Response Team 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.

Subversion (SVN) is a concurrent version control system which enables one or more users to collaborate in developing and maintaining a hierarchy of files and directories while keeping a history of all changes. The mod_dav_svn module is used with the Apache HTTP Server to allow access to Subversion repositories via HTTP.

A NULL pointer dereference flaw was found in the way the mod_dav_svn module handled PROPFIND requests on activity URLs. A remote attacker could use this flaw to cause the httpd process serving the request to crash. (CVE-2013-1849)

A flaw was found in the way the mod_dav_svn module handled large numbers of properties (such as those set with the 'svn propset' command). A malicious, remote user could use this flaw to cause the httpd process serving the request to consume an excessive amount of system memory. (CVE-2013-1845)

Two NULL pointer dereference flaws were found in the way the mod_dav_svn module handled LOCK requests on certain types of URLs. A malicious, remote user could use these flaws to cause the httpd process serving the request to crash. (CVE-2013-1846, CVE-2013-1847)

Note: The CVE-2013-1849, CVE-2013-1846, and CVE-2013-1847 issues only caused a temporary denial of service, as the Apache HTTP Server started a new process to replace the crashed child process. When using prefork MPM, the crash only affected the attacker. When using worker (threaded) MPM, the connections of other users may have been interrupted.

Red Hat would like to thank the Apache Subversion project for reporting these issues. Upstream acknowledges Alexander Klink as the original reporter of CVE-2013-1845; Ben Reser as the original reporter of CVE-2013-1846; and Philip Martin and Ben Reser as the original reporters of CVE-2013-1847.

All subversion users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, you must restart the httpd daemon, if you are using mod_dav_svn, for the update to take effect.

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

The Red Hat Security Response Team 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.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel.

A flaw was found in the way KVM handled guest time updates when the buffer the guest registered by writing to the MSR_KVM_SYSTEM_TIME machine state register (MSR) crossed a page boundary. A privileged guest user could use this flaw to crash the host or, potentially, escalate their privileges, allowing them to execute arbitrary code at the host kernel level. (CVE-2013-1796)

A potential use-after-free flaw was found in the way KVM handled guest time updates when the GPA (guest physical address) the guest registered by writing to the MSR_KVM_SYSTEM_TIME machine state register (MSR) fell into a movable or removable memory region of the hosting user-space process (by default, QEMU-KVM) on the host. If that memory region is deregistered from KVM using KVM_SET_USER_MEMORY_REGION and the allocated virtual memory reused, a privileged guest user could potentially use this flaw to escalate their privileges on the host. (CVE-2013-1797)

A flaw was found in the way KVM emulated IOAPIC (I/O Advanced Programmable Interrupt Controller). A missing validation check in the ioapic_read_indirect() function could allow a privileged guest user to crash the host, or read a substantial portion of host kernel memory.
(CVE-2013-1798)

Red Hat would like to thank Andrew Honig of Google for reporting all of these issues.

All users of kvm are advised to upgrade to these updated packages, which contain backported patches to correct these issues. Note that the procedure in the Solution section must be performed before this update will take effect.

An updated stunnel package that fixes one security issue is now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

stunnel is a socket wrapper which can provide SSL (Secure Sockets Layer) support to ordinary applications. For example, it can be used in conjunction with imapd to create an SSL-secure IMAP server.

An integer conversion issue was found in stunnel when using Microsoft NT LAN Manager (NTLM) authentication with the HTTP CONNECT tunneling method. With this configuration, and using stunnel in SSL client mode on a 64-bit system, an attacker could possibly execute arbitrary code with the privileges of the stunnel process via a man-in-the-middle attack or by tricking a user into using a malicious proxy.
(CVE-2013-1762)

All stunnel users should upgrade to this updated package, which contains a backported patch to correct this issue.

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

The Red Hat Security Response Team 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 content.
Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2013-0788)

A flaw was found in the way Same Origin Wrappers were implemented in Thunderbird. Malicious content could use this flaw to bypass the same-origin policy and execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2013-0795)

A flaw was found in the embedded WebGL library in Thunderbird.
Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. Note: This issue only affected systems using the Intel Mesa graphics drivers. (CVE-2013-0796)

An out-of-bounds write flaw was found in the embedded Cairo library in Thunderbird. Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2013-0800)

A flaw was found in the way Thunderbird handled the JavaScript history functions. Malicious content could cause a page to be displayed that has a baseURI pointing to a different site, allowing cross-site scripting (XSS) and phishing attacks. (CVE-2013-0793)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Olli Pettay, Jesse Ruderman, Boris Zbarsky, Christian Holler, Milan Sreckovic, Joe Drew, Cody Crews, miaubiz, Abhishek Arya, and Mariusz Mlynski as the original reporters of these issues.

Note: All issues except CVE-2013-0800 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.

All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 17.0.5 ESR, which corrects these issues.
After installing the update, Thunderbird must be restarted for the changes to take effect.

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

The Red Hat Security Response Team 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-2013-0788)

A flaw was found in the way Same Origin Wrappers were implemented in Firefox. A malicious site could use this flaw to bypass the same-origin policy and execute arbitrary code with the privileges of the user running Firefox. (CVE-2013-0795)

A flaw was found in the embedded WebGL library in Firefox. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. Note: This issue only affected systems using the Intel Mesa graphics drivers. (CVE-2013-0796)

An out-of-bounds write flaw was found in the embedded Cairo library in Firefox. 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-2013-0800)

A flaw was found in the way Firefox handled the JavaScript history functions. A malicious site could cause a web page to be displayed that has a baseURI pointing to a different site, allowing cross-site scripting (XSS) and phishing attacks. (CVE-2013-0793)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Olli Pettay, Jesse Ruderman, Boris Zbarsky, Christian Holler, Milan Sreckovic, Joe Drew, Cody Crews, miaubiz, Abhishek Arya, and Mariusz Mlynski as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 17.0.5 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 17.0.5 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

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

The Red Hat Security Response Team 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 libdns library. A remote attacker could use this flaw to send a specially crafted DNS query to named that, when processed, would cause named to use an excessive amount of memory, or possibly crash. (CVE-2013-2266)

Note: This update disables the syntax checking of NAPTR (Naming Authority Pointer) resource records.

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

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

The Red Hat Security Response Team 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.

Pixman is a pixel manipulation library for the X Window System and Cairo.

An integer overflow flaw was discovered in one of pixman's manipulation routines. If a remote attacker could trick an application using pixman into performing a certain manipulation, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2013-1591)

Users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All applications using pixman must be restarted for this update to take effect.

Updated perl packages that fix multiple security issues now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team 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.

Perl is a high-level programming language commonly used for system administration utilities and web programming.

A heap overflow flaw was found in Perl. If a Perl application allowed user input to control the count argument of the string repeat operator, an attacker could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2012-5195)

A denial of service flaw was found in the way Perl's rehashing code implementation, responsible for recalculation of hash keys and redistribution of hash content, handled certain input. If an attacker supplied specially crafted input to be used as hash keys by a Perl application, it could cause excessive memory consumption.
(CVE-2013-1667)

It was found that the Perl CGI module, used to handle Common Gateway Interface requests and responses, incorrectly sanitized the values for Set-Cookie and P3P headers. If a Perl application using the CGI module reused cookies values and accepted untrusted input from web browsers, a remote attacker could use this flaw to alter member items of the cookie or add new items. (CVE-2012-5526)

It was found that the Perl Locale::Maketext module, used to localize Perl applications, did not properly handle backslashes or fully-qualified method names. An attacker could possibly use this flaw to execute arbitrary Perl code with the privileges of a Perl application that uses untrusted Locale::Maketext templates.
(CVE-2012-6329)

Red Hat would like to thank the Perl project for reporting CVE-2012-5195 and CVE-2013-1667. Upstream acknowledges Tim Brown as the original reporter of CVE-2012-5195 and Yves Orton as the original reporter of CVE-2013-1667.

All Perl users should upgrade to these updated packages, which contain backported patches to correct these issues. All running Perl programs must be restarted for this update to take effect.

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

The Red Hat Security Response Team 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.

Apache Axis is an implementation of SOAP (Simple Object Access Protocol). It can be used to build both web service clients and servers.

Apache Axis did not verify that the server hostname matched the domain name in the subject's Common Name (CN) or subjectAltName field in X.509 certificates. This could allow a man-in-the-middle attacker to spoof an SSL server if they had a certificate that was valid for any domain name. (CVE-2012-5784)

All users of axis are advised to upgrade to these updated packages, which correct this issue. Applications using Apache Axis must be restarted for this update to take effect.

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

The Red Hat Security Response Team 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.

Qt is a software toolkit that simplifies the task of writing and maintaining GUI (Graphical User Interface) applications for the X Window System.

It was discovered that the QSharedMemory class implementation of the Qt toolkit created shared memory segments with insecure permissions. A local attacker could use this flaw to read or alter the contents of a particular shared memory segment, possibly leading to their ability to obtain sensitive information or influence the behavior of a process that is using the shared memory segment. (CVE-2013-0254)

Red Hat would like to thank the Qt project for reporting this issue.
Upstream acknowledges Tim Brown and Mark Lowe of Portcullis Computer Security Ltd. as the original reporters.

Users of Qt should upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications linked against Qt libraries must be restarted for this update to take effect.

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

The Red Hat Security Response Team 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 boost packages provide free, peer-reviewed, portable C++ source libraries with emphasis on libraries which work well with the C++ Standard Library.

A flaw was found in the way the ordered_malloc() routine in Boost sanitized the 'next_size' and 'max_size' parameters when allocating memory. If an application used the Boost C++ libraries for memory allocation, and performed memory allocation based on user-supplied input, an attacker could use this flaw to crash the application or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2012-2677)

All users of boost are advised to upgrade to these updated packages, which contain a backported patch to fix this issue.

Updated sssd packages that fix one security issue and two bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

SSSD (System Security Services Daemon) provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides NSS (Name Service Switch) and PAM (Pluggable Authentication Modules) interfaces toward the system and a pluggable back end system to connect to multiple different account sources.

When SSSD was configured as a Microsoft Active Directory client by using the new Active Directory provider (introduced in RHSA-2013:0508), the Simple Access Provider ('access_provider = simple' in '/etc/sssd/sssd.conf') did not handle access control correctly. If any groups were specified with the 'simple_deny_groups' option (in sssd.conf), all users were permitted access.
(CVE-2013-0287)

The CVE-2013-0287 issue was discovered by Kaushik Banerjee of Red Hat.

This update also fixes the following bugs :

* If a group contained a member whose Distinguished Name (DN) pointed out of any of the configured search bases, the search request that was processing this particular group never ran to completion. To the user, this bug manifested as a long timeout between requesting the group data and receiving the result. A patch has been provided to address this bug and SSSD now processes group search requests without delays.
(BZ#907362)

* The pwd_expiration_warning should have been set for seven days, but instead it was set to zero for Kerberos. This incorrect zero setting returned the 'always display warning if the server sends one' error message and users experienced problems in environments like IPA or Active Directory. Currently, the value setting for Kerberos is modified and this issue no longer occurs. (BZ#914671)

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

Updated krb5 packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third-party, the Key Distribution Center (KDC).

When a client attempts to use PKINIT to obtain credentials from the KDC, the client can specify, using an issuer and serial number, which of the KDC's possibly-many certificates the client has in its possession, as a hint to the KDC that it should use the corresponding key to sign its response. If that specification was malformed, the KDC could attempt to dereference a NULL pointer and crash. (CVE-2013-1415)

When a client attempts to use PKINIT to obtain credentials from the KDC, the client will typically format its request to conform to the specification published in RFC 4556. For interoperability reasons, clients and servers also provide support for an older, draft version of that specification. If a client formatted its request to conform to this older version of the specification, with a non-default key agreement option, it could cause the KDC to attempt to dereference a NULL pointer and crash. (CVE-2012-1016)

All krb5 users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the krb5kdc daemon will be restarted automatically.

Updated pidgin packages that fix three security issues are now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team 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.

Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously.

A stack-based buffer overflow flaw was found in the Pidgin MXit protocol plug-in. A malicious server or a remote attacker could use this flaw to crash Pidgin by sending a specially crafted HTTP request.
(CVE-2013-0272)

A buffer overflow flaw was found in the Pidgin Sametime protocol plug-in. A malicious server or a remote attacker could use this flaw to crash Pidgin by sending a specially crafted username.
(CVE-2013-0273)

A buffer overflow flaw was found in the way Pidgin processed certain UPnP responses. A remote attacker could send a specially crafted UPnP response that, when processed, would crash Pidgin. (CVE-2013-0274)

Red Hat would like to thank the Pidgin project for reporting the above issues. Upstream acknowledges Daniel Atallah as the original reporter of CVE-2013-0272.

All Pidgin users should upgrade to these updated packages, which contain backported patches to resolve these issues. Pidgin 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.

The Red Hat Security Response Team 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.

This update fixes the following security issues :

* A flaw was found in the way the xen_iret() function in the Linux kernel used the DS (the CPU's Data Segment) register. A local, unprivileged user in a 32-bit, para-virtualized Xen hypervisor guest could use this flaw to crash the guest or, potentially, escalate their privileges. (CVE-2013-0228, Important)

* A flaw was found in the way file permission checks for the '/dev/cpu/[x]/msr' files were performed in restricted root environments (for example, when using a capability-based security model). A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register. (CVE-2013-0268, Important)

The CVE-2013-0228 issue was discovered by Andrew Jones 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.

Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect.

Updated tomcat5 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team 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.

Apache Tomcat is a servlet container.

It was found that when an application used FORM authentication, along with another component that calls request.setUserPrincipal() before the call to FormAuthenticator#authenticate() (such as the Single-Sign-On valve), it was possible to bypass the security constraint checks in the FORM authenticator by appending '/j_security_check' to the end of a URL. A remote attacker with an authenticated session on an affected application could use this flaw to circumvent authorization controls, and thereby access resources not permitted by the roles associated with their authenticated session.
(CVE-2012-3546)

Multiple weaknesses were found in the Tomcat DIGEST authentication implementation, effectively reducing the security normally provided by DIGEST authentication. A remote attacker could use these flaws to perform replay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886, CVE-2012-5887)

Users of Tomcat should upgrade to these updated packages, which correct these issues. Tomcat must be restarted for this update to take effect.

Updated 389-ds-base packages that fix one security issue and multiple bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 389 Directory Server is an LDAPv3 compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration.

A flaw was found in the way LDAPv3 control data was handled by 389 Directory Server. If a malicious user were able to bind to the directory (even anonymously) and send an LDAP request containing crafted LDAPv3 control data, they could cause the server to crash, denying service to the directory. (CVE-2013-0312)

The CVE-2013-0312 issue was discovered by Thierry Bordaz of Red Hat.

This update also fixes the following bugs :

* After an upgrade from Red Hat Enterprise Linux 6.3 to version 6.4, the upgrade script did not update the schema file for the PamConfig object class. Consequently, new features for PAM such as configuration of multiple instances and pamFilter attribute could not be used because of the schema violation. With this update, the upgrade script updates the schema file for the PamConfig object class and new features function properly. (BZ#910994)

* Previously, the valgrind test suite reported recurring memory leaks in the modify_update_last_modified_attr() function. The size of the leaks averaged between 60-80 bytes per modify call. In environments where modify operations were frequent, this caused significant problems. Now, memory leaks no longer occur in the modify_update_last_modified_attr() function. (BZ#910995)

* The Directory Server (DS) failed when multi-valued attributes were replaced. The problem occurred when replication was enabled, while the server executing the modification was configured as a single master and there was at least one replication agreement. Consequently, the modification requests were refused by the master server, which returned a code 20 'Type or value exists' error message. These requests were replacements of multi-valued attributes, and the error only occurred when one of the new values matched one of the current values of the attribute, but had a different letter case. Now, modification requests function properly and no longer return code 20 errors. (BZ#910996)

* The DNA (distributed numeric assignment) plug-in, under certain conditions, could log error messages with the 'DB_LOCK_DEADLOCK' error code when attempting to create an entry with a uidNumber attribute.
Now, DNA handles this case properly and errors no longer occur during attempts to create entries with uidNumber attributes. (BZ#911467)

* Posix Winsync plugin was calling an internal modify function which was not necessary. The internal modify call failed and logged an error message 'slapi_modify_internal_set_pb: NULL parameter' which was not clear. This patch stops calling the internal modify function if it is not necessary and the cryptic error message is not observed.
(BZ#911468)

* Previously, under certain conditions, the dse.ldif file had 0 bytes after a server termination or when the machine was powered off.
Consequently, after the system was brought up, a DS or IdM system could be unable to restart, leading to production server outages. Now, the server mechanism by which the dse.ldif is written is more robust, and tries all available backup dse.ldif files, and outages no longer occur. (BZ#911469)

* Due to an incorrect interpretation of an error code, a directory server considered an invalid chaining configuration setting as the disk full error and shut down unexpectedly. Now, a more appropriate error code is in use and the server no longer shuts down from invalid chaining configuration settings. (BZ#911474)

* While trying to remove a tombstone entry, the ns-slapd daemon terminated unexpectedly with a segmentation fault. With this update, removal of tombstone entries no longer causes crashes. (BZ#914305)

All 389-ds-base users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
After installing this update, the 389 server service will be restarted automatically.

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

The Red Hat Security Response Team 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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A flaw was found in the processing of malformed content. Malicious content could cause Thunderbird to crash or execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2013-0787)

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges VUPEN Security via the TippingPoint Zero Day Initiative project as the original reporter.

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

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

Updated tomcat6 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

Apache Tomcat is a servlet container.

It was found that when an application used FORM authentication, along with another component that calls request.setUserPrincipal() before the call to FormAuthenticator#authenticate() (such as the Single-Sign-On valve), it was possible to bypass the security constraint checks in the FORM authenticator by appending '/j_security_check' to the end of a URL. A remote attacker with an authenticated session on an affected application could use this flaw to circumvent authorization controls, and thereby access resources not permitted by the roles associated with their authenticated session.
(CVE-2012-3546)

A flaw was found in the way Tomcat handled sendfile operations when using the HTTP NIO (Non-Blocking I/O) connector and HTTPS. A remote attacker could use this flaw to cause a denial of service (infinite loop). The HTTP blocking IO (BIO) connector, which is not vulnerable to this issue, is used by default in Red Hat Enterprise Linux 6.
(CVE-2012-4534)

Multiple weaknesses were found in the Tomcat DIGEST authentication implementation, effectively reducing the security normally provided by DIGEST authentication. A remote attacker could use these flaws to perform replay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886, CVE-2012-5887)

Users of Tomcat should upgrade to these updated packages, which correct these issues. Tomcat must be restarted for this update to take effect.

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

The Red Hat Security Response Team 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.

This update fixes the following security issues :

* A flaw was found in the way file permission checks for the '/dev/cpu/[x]/msr' files were performed in restricted root environments (for example, when using a capability-based security model). A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register. (CVE-2013-0268, Important)

* A race condition was found in the way the Linux kernel's ptrace implementation handled PTRACE_SETREGS requests when the debuggee was woken due to a SIGKILL signal instead of being stopped. A local, unprivileged user could use this flaw to escalate their privileges.
(CVE-2013-0871, Important)

Users should 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 xulrunner packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team 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.

XULRunner provides the XUL Runtime environment for applications using the Gecko layout engine.

A flaw was found in the way XULRunner handled malformed web content. A web page containing malicious content could cause an application linked against XULRunner (such as Mozilla Firefox) to crash or execute arbitrary code with the privileges of the user running the application. (CVE-2013-0787)

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges VUPEN Security via the TippingPoint Zero Day Initiative project as the original reporter.

For technical details regarding this flaw, refer to the Mozilla security advisories. You can find a link to the Mozilla advisories in the References section of this erratum.

All XULRunner users should upgrade to these updated packages, which correct this issue. After installing the update, applications using XULRunner must be restarted for the changes to take effect.

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

The Red Hat Security Response Team 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 do system management tasks.

It was discovered that Ruby's REXML library did not properly restrict XML entity expansion. An attacker could use this flaw to cause a denial of service by tricking a Ruby application using REXML to read text nodes from specially crafted XML content, which will result in REXML consuming large amounts of system memory. (CVE-2013-1821)

It was found that the RHSA-2011:0910 update did not correctly fix the CVE-2011-1005 issue, a flaw in the method for translating an exception message into a string in the Exception class. A remote attacker could use this flaw to bypass safe level 4 restrictions, allowing untrusted (tainted) code to modify arbitrary, trusted (untainted) strings, which safe level 4 restrictions would otherwise prevent. (CVE-2012-4481)

The CVE-2012-4481 issue was discovered by Vit Ondruch of Red Hat.

All users of Ruby are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

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

The Red Hat Security Response Team 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.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. qemu-kvm is the user-space component for running virtual machines using KVM.

A flaw was found in the way QEMU-KVM emulated the e1000 network interface card when the host was configured to accept jumbo network frames, and a guest using the e1000 emulated driver was not. A remote attacker could use this flaw to crash the guest or, potentially, execute arbitrary code with root privileges in the guest.
(CVE-2012-6075)

All users of qemu-kvm should upgrade to these updated packages, which contain backported patches to correct this issue. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.

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

The Red Hat Security Response Team 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.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel.

A flaw was found in the way QEMU-KVM emulated the e1000 network interface card when the host was configured to accept jumbo network frames, and a guest using the e1000 emulated driver was not. A remote attacker could use this flaw to crash the guest or, potentially, execute arbitrary code with root privileges in the guest.
(CVE-2012-6075)

All users of kvm are advised to upgrade to these updated packages, which contain backported patches to correct this issue. Note that the procedure in the Solution section must be performed before this update will take effect.

Updated java-1.6.0-openjdk packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

These packages provide the OpenJDK 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit.

An integer overflow flaw was found in the way the 2D component handled certain sample model instances. A specially crafted sample model instance could cause Java Virtual Machine memory corruption and, possibly, lead to arbitrary code execution with virtual machine privileges. (CVE-2013-0809)

It was discovered that the 2D component did not properly reject certain malformed images. Specially crafted raster parameters could cause Java Virtual Machine memory corruption and, possibly, lead to arbitrary code execution with virtual machine privileges.
(CVE-2013-1493)

Note: If your system has not yet been upgraded to Red Hat Enterprise Linux 6.4 and 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. Thus, this update has been rated as having critical security impact as a one time exception. The icedtea-web package as provided with Red Hat Enterprise Linux 6.4 uses OpenJDK 7 instead.

This erratum also upgrades the OpenJDK package to IcedTea6 1.11.9.
Refer to the NEWS file, linked to in the References, for further information.

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 java-1.7.0-openjdk packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

These packages provide the OpenJDK 7 Java Runtime Environment and the OpenJDK 7 Software Development Kit.

An integer overflow flaw was found in the way the 2D component handled certain sample model instances. A specially crafted sample model instance could cause Java Virtual Machine memory corruption and, possibly, lead to arbitrary code execution with virtual machine privileges. (CVE-2013-0809)

It was discovered that the 2D component did not properly reject certain malformed images. Specially crafted raster parameters could cause Java Virtual Machine memory corruption and, possibly, lead to arbitrary code execution with virtual machine privileges.
(CVE-2013-1493)

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.

This erratum also upgrades the OpenJDK package to IcedTea7 2.3.8.
Refer to the NEWS file, linked to in the References, for further information.

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 nss-pam-ldapd packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 nss-pam-ldapd packages provide the nss-pam-ldapd daemon (nslcd), which uses a directory server to lookup name service information on behalf of a lightweight nsswitch module.

An array index error, leading to a stack-based buffer overflow flaw, was found in the way nss-pam-ldapd managed open file descriptors. An attacker able to make a process have a large number of open file descriptors and perform name lookups could use this flaw to cause the process to crash or, potentially, execute arbitrary code with the privileges of the user running the process. (CVE-2013-0288)

Red Hat would like to thank Garth Mollett for reporting this issue.

All users of nss-pam-ldapd are advised to upgrade to these updated packages, which contain a backported patch to fix this issue.

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

The Red Hat Security Response Team 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.

Git is a fast, scalable, distributed revision control system.

It was discovered that Git's git-imap-send command, a tool to send a collection of patches from standard input (stdin) to an IMAP folder, did not properly perform SSL X.509 v3 certificate validation on the IMAP server's certificate, as it did not ensure that the server's hostname matched the one provided in the CN field of the server's certificate. A rogue server could use this flaw to conduct man-in-the-middle attacks, possibly leading to the disclosure of sensitive information. (CVE-2013-0308)

All git users should upgrade to these updated packages, which contain a backported patch to correct this issue.

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

The Red Hat Security Response Team 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.

This update fixes the following security issue :

* A race condition was found in the way the Linux kernel's ptrace implementation handled PTRACE_SETREGS requests when the debuggee was woken due to a SIGKILL signal instead of being stopped. A local, unprivileged user could use this flaw to escalate their privileges.
(CVE-2013-0871, Important)

Users should 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 bind packages that fix one security issue and add one enhancement are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 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. DNS64 is used to automatically generate DNS records so IPv6 based clients can access IPv4 systems through a NAT64 server.

A flaw was found in the DNS64 implementation in BIND when using Response Policy Zones (RPZ). If a remote attacker sent a specially crafted query to a named server that is using RPZ rewrite rules, named could exit unexpectedly with an assertion failure. Note that DNS64 support is not enabled by default. (CVE-2012-5689)

This update also adds the following enhancement :

* Previously, it was impossible to configure the the maximum number of responses sent per second to one client. This allowed remote attackers to conduct traffic amplification attacks using DNS queries with spoofed source IP addresses. With this update, it is possible to use the new 'rate-limit' configuration option in named.conf and configure the maximum number of queries which the server responds to. Refer to the BIND documentation for more details about the 'rate-limit' option.
(BZ#906312)

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

Updated ipa packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

Red Hat Identity Management is a centralized authentication, identity management and authorization solution for both traditional and cloud-based enterprise environments. It integrates components of the Red Hat Directory Server, MIT Kerberos, Red Hat Certificate System, NTP, and DNS. It provides web browser and command-line interfaces. Its administration tools allow an administrator to quickly install, set up, and administer a group of domain controllers to meet the authentication and identity management requirements of large-scale Linux and UNIX deployments.

It was found that the current default configuration of IPA servers did not publish correct CRLs (Certificate Revocation Lists). The default configuration specifies that every replica is to generate its own CRL;
however, this can result in inconsistencies in the CRL contents provided to clients from different Identity Management replicas. More specifically, if a certificate is revoked on one Identity Management replica, it will not show up on another Identity Management replica.
(CVE-2012-4546)

These updated ipa packages also include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes.

Users are advised to upgrade to these updated ipa packages, which fix these issues and add these enhancements.

An updated automake package that fixes one security issue is now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

Automake is a tool for automatically generating Makefile.in files compliant with the GNU Coding Standards.

It was found that the distcheck rule in Automake-generated Makefiles made a directory world-writable when preparing source archives. If a malicious, local user could access this directory, they could execute arbitrary code with the privileges of the user running 'make distcheck'. (CVE-2012-3386)

Red Hat would like to thank Jim Meyering for reporting this issue.
Upstream acknowledges Stefano Lattarini as the original reporter.

Users of automake are advised to upgrade to this updated package, which corrects this issue.

Updated pcsc-lite packages that fix one security issue and three bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

PC/SC Lite provides a Windows SCard compatible interface for communicating with smart cards, smart card readers, and other security tokens.

A stack-based buffer overflow flaw was found in the way pcsc-lite decoded certain attribute values of Answer-to-Reset (ATR) messages. A local attacker could use this flaw to execute arbitrary code with the privileges of the user running the pcscd daemon (root, by default), by inserting a specially crafted smart card. (CVE-2010-4531)

This update also fixes the following bugs :

* Due to an error in the init script, the chkconfig utility did not automatically place the pcscd init script after the start of the HAL daemon. Consequently, the pcscd service did not start automatically at boot time. With this update, the pcscd init script has been changed to explicitly start only after HAL is up, thus fixing this bug.
(BZ#788474, BZ#814549)

* Because the chkconfig settings and the startup files in the /etc/rc.d/ directory were not changed during the update described in the RHBA-2012:0990 advisory, the user had to update the chkconfig settings manually to fix the problem. Now, the chkconfig settings and the startup files in the /etc/rc.d/ directory are automatically updated as expected. (BZ#834803)

* Previously, the SCardGetAttrib() function did not work properly and always returned the 'SCARD_E_INSUFFICIENT_BUFFER' error regardless of the actual buffer size. This update applies a patch to fix this bug and the SCardGetAttrib() function now works as expected. (BZ#891852)

All users of pcsc-lite are advised to upgrade to these updated packages, which fix these issues. After installing this update, the pcscd daemon will be restarted automatically.

An updated ccid package that fixes one security issue and one bug are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

Chip/Smart Card Interface Devices (CCID) is a USB smart card reader standard followed by most modern smart card readers. The ccid package provides a Generic, USB-based CCID driver for readers, which follow this standard.

An integer overflow, leading to an array index error, was found in the way the CCID driver processed a smart card's serial number. A local attacker could use this flaw to execute arbitrary code with the privileges of the user running the PC/SC Lite pcscd daemon (root, by default), by inserting a specially crafted smart card. (CVE-2010-4530)

This update also fixes the following bug :

* Previously, CCID only recognized smart cards with 5V power supply.
With this update, CCID also supports smart cards with different power supply. (BZ#808115)

All users of ccid are advised to upgrade to this updated package, which contains backported patches to correct these issues.

Updated gdb packages that fix one security issue and three bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 GNU Debugger (GDB) allows debugging of programs written in C, C++, Java, and other languages by executing them in a controlled fashion and then printing out their data.

GDB tried to auto-load certain files (such as GDB scripts, Python scripts, and a thread debugging library) from the current working directory when debugging programs. This could result in the execution of arbitrary code with the user's privileges when GDB was run in a directory that has untrusted content. (CVE-2011-4355)

With this update, GDB no longer auto-loads files from the current directory and only trusts certain system directories by default. The list of trusted directories can be viewed and modified using the 'show auto-load safe-path' and 'set auto-load safe-path' GDB commands. Refer to the GDB manual, linked to in the References, for further information.

This update also fixes the following bugs :

* When a struct member was at an offset greater than 256 MB, the resulting bit position within the struct overflowed and caused an invalid memory access by GDB. With this update, the code has been modified to ensure that GDB can access such positions. (BZ#795424)

* When a thread list of the core file became corrupted, GDB did not print this list but displayed the 'Cannot find new threads: generic error' error message instead. With this update, GDB has been modified and it now prints the thread list of the core file as expected.
(BZ#811648)

* GDB did not properly handle debugging of multiple binaries with the same build ID. This update modifies GDB to use symbolic links created for particular binaries so that debugging of binaries that share a build ID now proceeds as expected. Debugging of live programs and core files is now more user-friendly. (BZ#836966)

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

Updated pam packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs to handle authentication.

A stack-based buffer overflow flaw was found in the way the pam_env module parsed users' '~/.pam_environment' files. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to crash the application or, possibly, escalate their privileges. (CVE-2011-3148)

A denial of service flaw was found in the way the pam_env module expanded certain environment variables. If an application's PAM configuration contained 'user_readenv=1' (this is not the default), a local attacker could use this flaw to cause the application to enter an infinite loop. (CVE-2011-3149)

Red Hat would like to thank Kees Cook of the Google ChromeOS Team for reporting the CVE-2011-3148 and CVE-2011-3149 issues.

These updated pam packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes.

All pam users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements.

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

The Red Hat Security Response Team has rated this update as having low 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.

Dovecot is an IMAP server, written with security primarily in mind, for Linux and other UNIX-like systems. It also contains a small POP3 server. It supports mail in either of maildir or mbox formats. The SQL drivers and authentication plug-ins are provided as sub-packages.

Two flaws were found in the way some settings were enforced by the script-login functionality of Dovecot. A remote, authenticated user could use these flaws to bypass intended access restrictions or conduct a directory traversal attack by leveraging login scripts.
(CVE-2011-2166, CVE-2011-2167)

A flaw was found in the way Dovecot performed remote server identity verification, when it was configured to proxy IMAP and POP3 connections to remote hosts using TLS/SSL protocols. A remote attacker could use this flaw to conduct man-in-the-middle attacks using an X.509 certificate issued by a trusted Certificate Authority (for a different name). (CVE-2011-4318)

This update also fixes the following bug :

* When a new user first accessed their IMAP inbox, Dovecot was, under some circumstances, unable to change the group ownership of the inbox directory in the user's Maildir location to match that of the user's mail spool (/var/mail/$USER). This correctly generated an 'Internal error occurred' message. However, with a subsequent attempt to access the inbox, Dovecot saw that the directory already existed and proceeded with its operation, leaving the directory with incorrectly set permissions. This update corrects the underlying permissions setting error. When a new user now accesses their inbox for the first time, and it is not possible to set group ownership, Dovecot removes the created directory and generates an error message instead of keeping the directory with incorrect group ownership. (BZ#697620)

Users of dovecot are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the dovecot service will be restarted automatically.

Updated openssh packages that fix one security issue, multiple bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

OpenSSH is OpenBSD's Secure Shell (SSH) protocol implementation. These packages include the core files necessary for the OpenSSH client and server.

Due to the way the pam_ssh_agent_auth PAM module was built in Red Hat Enterprise Linux 6, the glibc's error() function was called rather than the intended error() function in pam_ssh_agent_auth to report errors. As these two functions expect different arguments, it was possible for an attacker to cause an application using pam_ssh_agent_auth to crash, disclose portions of its memory or, potentially, execute arbitrary code. (CVE-2012-5536)

Note that the pam_ssh_agent_auth module is not used in Red Hat Enterprise Linux 6 by default.

This update also fixes the following bugs :

* All possible options for the new RequiredAuthentications directive were not documented in the sshd_config man page. This update improves the man page to document all the possible options. (BZ#821641)

* When stopping one instance of the SSH daemon (sshd), the sshd init script (/etc/rc.d/init.d/sshd) stopped all sshd processes regardless of the PID of the processes. This update improves the init script so that it only kills processes with the relevant PID. As a result, the init script now works more reliably in a multi-instance environment.
(BZ#826720)

* Due to a regression, the ssh-copy-id command returned an exit status code of zero even if there was an error in copying the key to a remote host. With this update, a patch has been applied and ssh-copy-id now returns a non-zero exit code if there is an error in copying the SSH certificate to a remote host. (BZ#836650)

* When SELinux was disabled on the system, no on-disk policy was installed, a user account was used for a connection, and no '~/.ssh' configuration was present in that user's home directory, the SSH client terminated unexpectedly with a segmentation fault when attempting to connect to another system. A patch has been provided to address this issue and the crashes no longer occur in the described scenario. (BZ#836655)

* The 'HOWTO' document /usr/share/doc/openssh-ldap-5.3p1/HOWTO.ldap-keys incorrectly documented the use of the AuthorizedKeysCommand directive. This update corrects the document. (BZ#857760)

This update also adds the following enhancements :

* When attempting to enable SSH for use with a Common Access Card (CAC), the ssh-agent utility read all the certificates in the card even though only the ID certificate was needed. Consequently, if a user entered their PIN incorrectly, then the CAC was locked, as a match for the PIN was attempted against all three certificates. With this update, ssh-add does not try the same PIN for every certificate if the PIN fails for the first one. As a result, the CAC will not be disabled if a user enters their PIN incorrectly. (BZ#782912)

* This update adds a 'netcat mode' to SSH. The 'ssh -W host:port ...' command connects standard input and output (stdio) on a client to a single port on a server. As a result, SSH can be used to route connections via intermediate servers. (BZ#860809)

* Due to a bug, arguments for the RequiredAuthentications2 directive were not stored in a Match block. Consequently, parsing of the config file was not in accordance with the man sshd_config documentation.
This update fixes the bug and users can now use the required authentication feature to specify a list of authentication methods as expected according to the man page. (BZ#869903)

All users of openssh are advised to upgrade to these updated packages, which fix these issues and add these enhancements. After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.

Updated util-linux-ng packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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 util-linux-ng packages contain a large variety of low-level system utilities that are necessary for a Linux operating system to function.

An information disclosure flaw was found in the way the mount command reported errors. A local attacker could use this flaw to determine the existence of files and directories they do not have access to.
(CVE-2013-0157)

These updated util-linux-ng packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes.

All users of util-linux-ng are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements.

ID	Name	Severity
66257	CentOS 6 : mysql (CESA-2013:0772)	medium
66217	CentOS 5 : glibc (CESA-2013:0769)	medium
66206	CentOS 5 / 6 : curl (CESA-2013:0771)	medium
66205	CentOS 5 / 6 : java-1.6.0-openjdk (CESA-2013:0770)	critical
66204	CentOS 6 : kernel (CESA-2013:0744)	high
66027	CentOS 6 : java-1.7.0-openjdk (CESA-2013:0751)	critical
66003	CentOS 6 : icedtea-web (CESA-2013:0753)	medium
66002	CentOS 5 : java-1.7.0-openjdk (CESA-2013:0752)	critical
66001	CentOS 6 : krb5 (CESA-2013:0748)	medium
65988	CentOS 5 : kernel (CESA-2013:0747)	medium
65987	CentOS 6 : 389-ds-base (CESA-2013:0742)	low
65932	CentOS 5 / 6 : subversion (CESA-2013:0737)	medium
65920	CentOS 5 : kvm (CESA-2013:0727)	medium
65903	CentOS 6 : stunnel (CESA-2013:0714)	medium
65771	CentOS 5 / 6 : thunderbird (CESA-2013:0697)	critical
65770	CentOS 5 / 6 : firefox / xulrunner (CESA-2013:0696)	critical
65726	CentOS 5 : bind97 (CESA-2013:0690)	high
65725	CentOS 6 : pixman (CESA-2013:0687)	critical
65694	CentOS 5 / 6 : perl (CESA-2013:0685)	high
65693	CentOS 5 : axis (CESA-2013:0683)	medium
65661	CentOS 6 : qt (CESA-2013:0669)	low
65644	CentOS 5 / 6 : boost (CESA-2013:0668)	medium
65634	CentOS 6 : sssd (CESA-2013:0663)	medium
65618	CentOS 6 : krb5 (CESA-2013:0656)	high
65555	CentOS 5 / 6 : pidgin (CESA-2013:0646)	medium
65554	CentOS 6 : kernel (CESA-2013:0630)	medium
65530	CentOS 5 : tomcat5 (CESA-2013:0640)	medium
65227	CentOS 6 : 389-ds-base (CESA-2013:0628)	medium
65226	CentOS 5 / 6 : thunderbird (CESA-2013:0627)	high
65225	CentOS 6 : tomcat6 (CESA-2013:0623)	medium
65224	CentOS 5 : kernel (CESA-2013:0621)	medium
65167	CentOS 5 / 6 : xulrunner (CESA-2013:0614)	high
65166	CentOS 6 : ruby (CESA-2013:0612)	medium
65165	CentOS 6 : qemu-kvm (CESA-2013:0609)	high
65164	CentOS 5 : kvm (CESA-2013:0608)	high
65163	CentOS 6 : java-1.6.0-openjdk (CESA-2013:0605)	critical
65162	CentOS 6 : java-1.7.0-openjdk (CESA-2013:0602)	critical
65161	CentOS 6 : nss-pam-ldapd (CESA-2013:0590)	medium
65160	CentOS 6 : git (CESA-2013:0589)	medium
65159	CentOS 6 : kernel (CESA-2013:0567)	medium
65158	CentOS 6 : bind (CESA-2013:0550)	high
65157	CentOS 6 : ipa (CESA-2013:0528)	medium
65156	CentOS 6 : automake (CESA-2013:0526)	medium
65155	CentOS 6 : pcsc-lite (CESA-2013:0525)	medium
65154	CentOS 6 : ccid (CESA-2013:0523)	medium
65153	CentOS 6 : gdb (CESA-2013:0522)	medium
65152	CentOS 6 : pam (CESA-2013:0521)	medium
65151	CentOS 6 : dovecot (CESA-2013:0520)	medium
65150	CentOS 6 : openssh (CESA-2013:0519)	medium
65149	CentOS 6 : util-linux-ng (CESA-2013:0517)	low

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