An updated thunderbird package that fixes one security issue is now available for Red Hat Enterprise Linux 4 and 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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A race condition flaw was found in the way Thunderbird handled Document Object Model (DOM) element properties. An HTML mail message containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-3765)

Note: JavaScript support is disabled by default in Thunderbird. The CVE-2010-3765 issue is not exploitable unless JavaScript is enabled.

All Thunderbird users should upgrade to this updated package, which resolves this issue. All running instances of Thunderbird must be restarted for the update to take effect.

Updated cups 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. 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 Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems.

A use-after-free flaw was found in the way the CUPS server parsed Internet Printing Protocol (IPP) packets. A malicious user able to send IPP requests to the CUPS server could use this flaw to crash the CUPS server or, potentially, execute arbitrary code with the privileges of the CUPS server. (CVE-2010-2941)

A possible privilege escalation flaw was found in CUPS. An unprivileged process running as the 'lp' user (such as a compromised external filter program spawned by the CUPS server) could trick the CUPS server into overwriting arbitrary files as the root user.
(CVE-2010-2431)

Red Hat would like to thank Emmanuel Bouillon of NATO C3 Agency for reporting the CVE-2010-2941 issue.

Users of cups are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the cupsd daemon will be restarted automatically.

Updated SeaMonkey packages that fix one security issue are now available for Red Hat Enterprise Linux 3 and 4.

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.

SeaMonkey is an open source web browser, email and newsgroup client, IRC chat client, and HTML editor.

A race condition flaw was found in the way SeaMonkey handled Document Object Model (DOM) element properties. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey.
(CVE-2010-3765)

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

Updated xulrunner 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 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 race condition flaw was found in the way XULRunner handled Document Object Model (DOM) element properties. Malicious HTML content could cause an application linked against XULRunner (such as Firefox) to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3765)

For technical details regarding this flaw, refer to the Mozilla security advisories for Firefox 3.6.12. 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 contain a backported patch to correct this issue. After installing the update, applications using XULRunner must be restarted for the changes to take effect.

An updated firefox package that fixes one security issue is now available for Red Hat Enterprise Linux 4.

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.

Mozilla Firefox is an open source web browser.

A race condition flaw was found in the way Firefox handled Document Object Model (DOM) element properties. 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-2010-3765)

For technical details regarding this flaw, refer to the Mozilla security advisories for Firefox 3.6.12. You can find a link to the Mozilla advisories in the References section of this erratum.

All Firefox users should upgrade to this updated package, which contains a backported patch to correct this issue. After installing the update, Firefox must be restarted for the changes to take effect.

Updated glibc 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 glibc packages contain the standard C libraries used by multiple programs on the system. These packages contain the standard C and the standard math libraries. Without these two libraries, a Linux system cannot function properly.

It was discovered that the glibc dynamic linker/loader did not perform sufficient safety checks when loading dynamic shared objects (DSOs) to provide callbacks for its auditing API during the execution of privileged programs. A local attacker could use this flaw to escalate their privileges via a carefully-chosen system DSO library containing unsafe constructors. (CVE-2010-3856)

Red Hat would like to thank Ben Hawkes and Tavis Ormandy for reporting this issue.

All 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 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 issue :

* The rds_page_copy_user() function in the Linux kernel Reliable Datagram Sockets (RDS) protocol implementation was missing sanity checks. A local, unprivileged user could use this flaw to escalate their privileges. (CVE-2010-3904, Important)

Red Hat would like to thank Dan Rosenberg of Virtual Security Research for reporting this issue.

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 pidgin packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 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.

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

Multiple NULL pointer dereference flaws were found in the way Pidgin handled Base64 decoding. A remote attacker could use these flaws to crash Pidgin if the target Pidgin user was using the Yahoo! Messenger Protocol, MSN, MySpace, or Extensible Messaging and Presence Protocol (XMPP) protocol plug-ins, or using the Microsoft NT LAN Manager (NTLM) protocol for authentication. (CVE-2010-3711)

A NULL pointer dereference flaw was found in the way the Pidgin MSN protocol plug-in processed custom emoticon messages. A remote attacker could use this flaw to crash Pidgin by sending specially crafted emoticon messages during mutual communication. (CVE-2010-1624)

Red Hat would like to thank the Pidgin project for reporting these issues. Upstream acknowledges Daniel Atallah as the original reporter of CVE-2010-3711, and Pierre Nogues of Meta Security as the original reporter of CVE-2010-1624.

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 glibc 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 glibc packages contain the standard C libraries used by multiple programs on the system. These packages contain the standard C and the standard math libraries. Without these two libraries, a Linux system cannot function properly.

It was discovered that the glibc dynamic linker/loader did not handle the $ORIGIN dynamic string token set in the LD_AUDIT environment variable securely. A local attacker with write access to a file system containing setuid or setgid binaries could use this flaw to escalate their privileges. (CVE-2010-3847)

Red Hat would like to thank Tavis Ormandy for reporting this issue.

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

Updated quagga packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 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.

Quagga is a TCP/IP based routing software suite. The Quagga bgpd daemon implements the BGP (Border Gateway Protocol) routing protocol.

A stack-based buffer overflow flaw was found in the way the Quagga bgpd daemon processed certain BGP Route Refresh (RR) messages. A configured BGP peer could send a specially crafted BGP message, causing bgpd on a target system to crash or, possibly, execute arbitrary code with the privileges of the user running bgpd.
(CVE-2010-2948)

Note: On Red Hat Enterprise Linux 5 it is not possible to exploit CVE-2010-2948 to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE.

Multiple NULL pointer dereference flaws were found in the way the Quagga bgpd daemon processed certain specially crafted BGP messages. A configured BGP peer could crash bgpd on a target system via specially crafted BGP messages. (CVE-2007-4826)

Users of quagga should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the bgpd daemon must be restarted for the update to take effect.

Updated firefox packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.

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. Network Security Services (NSS) is a set of libraries designed to support the development of security-enabled client and server applications.

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-2010-3175, CVE-2010-3176, CVE-2010-3179, CVE-2010-3183, CVE-2010-3180)

A flaw was found in the way the Gopher parser in Firefox converted text into HTML. A malformed file name on a Gopher server could, when accessed by a victim running Firefox, allow arbitrary JavaScript to be executed in the context of the Gopher domain. (CVE-2010-3177)

A same-origin policy bypass flaw was found in Firefox. An attacker could create a malicious web page that, when viewed by a victim, could steal private data from a different website the victim has loaded with Firefox. (CVE-2010-3178)

A flaw was found in the script that launches Firefox. The LD_LIBRARY_PATH variable was appending a '.' character, which could allow a local attacker to execute arbitrary code with the privileges of a different user running Firefox, if that user ran Firefox from within an attacker-controlled directory. (CVE-2010-3182)

This update also provides NSS version 3.12.8 which is required by the updated Firefox version, fixing the following security issues :

It was found that the SSL DHE (Diffie-Hellman Ephemeral) mode implementation for key exchanges in Firefox accepted DHE keys that were 256 bits in length. This update removes support for 256 bit DHE keys, as such keys are easily broken using modern hardware.
(CVE-2010-3173)

A flaw was found in the way NSS matched SSL certificates when the certificates had a Common Name containing a wildcard and a partial IP address. NSS incorrectly accepted connections to IP addresses that fell within the SSL certificate's wildcard range as valid SSL connections, possibly allowing an attacker to conduct a man-in-the-middle attack. (CVE-2010-3170)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.11. 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 3.6.11, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 3 and 4.

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.

SeaMonkey is an open source web browser, email and newsgroup client, IRC chat client, and HTML editor.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2010-3176, CVE-2010-3180)

A flaw was found in the way the Gopher parser in SeaMonkey converted text into HTML. A malformed file name on a Gopher server could, when accessed by a victim running SeaMonkey, allow arbitrary JavaScript to be executed in the context of the Gopher domain. (CVE-2010-3177)

A flaw was found in the script that launches SeaMonkey. The LD_LIBRARY_PATH variable was appending a '.' character, which could allow a local attacker to execute arbitrary code with the privileges of a different user running SeaMonkey, if that user ran SeaMonkey from within an attacker-controlled directory. (CVE-2010-3182)

It was found that the SSL DHE (Diffie-Hellman Ephemeral) mode implementation for key exchanges in SeaMonkey accepted DHE keys that were 256 bits in length. This update removes support for 256 bit DHE keys, as such keys are easily broken using modern hardware.
(CVE-2010-3173)

A flaw was found in the way SeaMonkey matched SSL certificates when the certificates had a Common Name containing a wildcard and a partial IP address. SeaMonkey incorrectly accepted connections to IP addresses that fell within the SSL certificate's wildcard range as valid SSL connections, possibly allowing an attacker to conduct a man-in-the-middle attack. (CVE-2010-3170)

All SeaMonkey users should upgrade to these updated packages, which correct these issues. After installing the update, SeaMonkey must be restarted for the changes to take effect.

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the processing of malformed HTML mail content. An HTML mail message containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-3176, CVE-2010-3180)

Note: JavaScript support is disabled by default in Thunderbird. The above issues are not exploitable unless JavaScript is enabled.

A flaw was found in the script that launches Thunderbird. The LD_LIBRARY_PATH variable was appending a '.' character, which could allow a local attacker to execute arbitrary code with the privileges of a different user running Thunderbird, if that user ran Thunderbird from within an attacker-controlled directory. (CVE-2010-3182)

All Thunderbird users should upgrade to this updated package, which resolves these issues. All running instances of Thunderbird 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 4.

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 :

* Information leak flaws were found in the Linux kernel Traffic Control Unit implementation. A local attacker could use these flaws to cause the kernel to leak kernel memory to user-space, possibly leading to the disclosure of sensitive information. (CVE-2010-2942, Moderate)

* A flaw was found in the tcf_act_police_dump() function in the Linux kernel network traffic policing implementation. A data structure in tcf_act_police_dump() was not initialized properly before being copied to user-space. A local, unprivileged user could use this flaw to cause an information leak. (CVE-2010-3477, Moderate)

* A missing upper bound integer check was found in the sys_io_submit() function in the Linux kernel asynchronous I/O implementation. A local, unprivileged user could use this flaw to cause an information leak.
(CVE-2010-3067, Low)

Red Hat would like to thank Tavis Ormandy for reporting CVE-2010-3067.

This update also fixes the following bugs :

* When two systems using bonding devices in the adaptive load balancing (ALB) mode communicated with each other, an endless loop of ARP replies started between these two systems due to a faulty MAC address update. With this update, the MAC address update no longer creates unneeded ARP replies. (BZ#629239)

* When running the Connectathon NFS Testsuite with certain clients and Red Hat Enterprise Linux 4.8 as the server, nfsvers4, lock, and test2 failed the Connectathon test. (BZ#625535)

* For UDP/UNIX domain sockets, due to insufficient memory barriers in the network code, a process sleeping in select() may have missed notifications about new data. In rare cases, this bug may have caused a process to sleep forever. (BZ#640117)

* In certain situations, a bug found in either the HTB or TBF network packet schedulers in the Linux kernel could have caused a kernel panic when using Broadcom network cards with the bnx2 driver. (BZ#624363)

* Previously, allocating fallback cqr for DASD reserve/release IOCTLs failed because it used the memory pool of the respective device. This update preallocates sufficient memory for a single reserve/release request. (BZ#626828)

* In some situations a bug prevented 'force online' succeeding for a DASD device. (BZ#626827)

* Using the 'fsstress' utility may have caused a kernel panic.
(BZ#633968)

* This update introduces additional stack guard patches. (BZ#632515)

* A bug was found in the way the megaraid_sas driver handled physical disks and management IOCTLs. All physical disks were exported to the disk layer, allowing an oops in megasas_complete_cmd_dpc() when completing the IOCTL command if a timeout occurred. (BZ#631903)

* Previously, a warning message was returned when a large amount of messages was passed through netconsole and a considerable amount of network load was added. With this update, the warning message is no longer displayed. (BZ#637729)

* Executing a large 'dd' command (1 to 5GB) on an iSCSI device with the qla3xxx driver caused a system crash due to the incorrect storing of a private data structure. With this update, the size of the stored data structure is checked and the system crashes no longer occur.
(BZ#624364)

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 java-1.6.0-openjdk packages that fix several 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 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.

defaultReadObject of the Serialization API could be tricked into setting a volatile field multiple times, which could allow a remote attacker to execute arbitrary code with the privileges of the user running the applet or application. (CVE-2010-3569)

Race condition in the way objects were deserialized could allow an untrusted applet or application to misuse the privileges of the user running the applet or application. (CVE-2010-3568)

Miscalculation in the OpenType font rendering implementation caused out-of-bounds memory access, which could allow remote attackers to execute code with the privileges of the user running the java process.
(CVE-2010-3567)

JPEGImageWriter.writeImage in the imageio API improperly checked certain image metadata, which could allow a remote attacker to execute arbitrary code in the context of the user running the applet or application. (CVE-2010-3565)

Double free in IndexColorModel could cause an untrusted applet or application to crash or, possibly, execute arbitrary code with the privileges of the user running the applet or application.
(CVE-2010-3562)

The privileged accept method of the ServerSocket class in the Common Object Request Broker Architecture (CORBA) implementation in OpenJDK allowed it to receive connections from any host, instead of just the host of the current connection. An attacker could use this flaw to bypass restrictions defined by network permissions. (CVE-2010-3561)

Flaws in the Swing library could allow an untrusted application to modify the behavior and state of certain JDK classes. (CVE-2010-3557)

Flaws in the CORBA implementation could allow an attacker to execute arbitrary code by misusing permissions granted to certain system objects. (CVE-2010-3554)

UIDefault.ProxyLazyValue had unsafe reflection usage, allowing untrusted callers to create objects via ProxyLazyValue values.
(CVE-2010-3553)

HttpURLConnection improperly handled the 'chunked' transfer encoding method, which could allow remote attackers to conduct HTTP response splitting attacks. (CVE-2010-3549)

HttpURLConnection improperly checked whether the calling code was granted the 'allowHttpTrace' permission, allowing untrusted code to create HTTP TRACE requests. (CVE-2010-3574)

HttpURLConnection did not validate request headers set by applets, which could allow remote attackers to trigger actions otherwise restricted to HTTP clients. (CVE-2010-3541, CVE-2010-3573)

The Kerberos implementation improperly checked the sanity of AP-REQ requests, which could cause a denial of service condition in the receiving Java Virtual Machine. (CVE-2010-3564)

The RHSA-2010:0339 update mitigated a man-in-the-middle attack in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handle session renegotiation by disabling renegotiation.
This update implements the TLS Renegotiation Indication Extension as defined in RFC 5746, allowing secure renegotiation between updated clients and servers. (CVE-2009-3555)

The NetworkInterface class improperly checked the network 'connect' permissions for local network addresses, which could allow remote attackers to read local network addresses. (CVE-2010-3551)

Information leak flaw in the Java Naming and Directory Interface (JNDI) could allow a remote attacker to access information about otherwise-protected internal network names. (CVE-2010-3548)

Note: Flaws concerning applets in this advisory (CVE-2010-3568, CVE-2010-3554, CVE-2009-3555, CVE-2010-3562, CVE-2010-3557, CVE-2010-3548, CVE-2010-3564, CVE-2010-3565, CVE-2010-3569) can only be triggered in OpenJDK by calling the 'appletviewer' application.

Bug fixes :

* This update provides one defense in depth patch. (BZ#639922)

* Problems for certain SSL connections. In a reported case, this prevented the JBoss JAAS modules from connecting over SSL to Microsoft Active Directory servers. (BZ#618290)

Updated poppler 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. 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.

Poppler is a Portable Document Format (PDF) rendering library, used by applications such as Evince.

An uninitialized pointer use flaw was discovered in poppler. An attacker could create a malicious PDF file that, when opened, would cause applications that use poppler (such as Evince) to crash or, potentially, execute arbitrary code. (CVE-2010-3702)

An array index error was found in the way poppler parsed PostScript Type 1 fonts embedded in PDF documents. An attacker could create a malicious PDF file that, when opened, would cause applications that use poppler (such as Evince) to crash or, potentially, execute arbitrary code. (CVE-2010-3704)

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

Updated cups packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4.

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 Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems. The CUPS 'pdftops' filter converts Portable Document Format (PDF) files to PostScript.

Multiple flaws were discovered in the CUPS 'pdftops' filter. An attacker could create a malicious PDF file that, when printed, would cause 'pdftops' to crash or, potentially, execute arbitrary code as the 'lp' user. (CVE-2010-3702, CVE-2009-3609)

Users of cups are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the cupsd daemon will be restarted automatically.

Updated cups packages that fix one security issue are now available for Red Hat Enterprise Linux 3.

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 Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems. The CUPS 'pdftops' filter converts Portable Document Format (PDF) files to PostScript.

An uninitialized pointer use flaw was discovered in the CUPS 'pdftops' filter. An attacker could create a malicious PDF file that, when printed, would cause 'pdftops' to crash or, potentially, execute arbitrary code as the 'lp' user. (CVE-2010-3702)

Users of cups are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the cupsd daemon will be restarted automatically.

Updated kdegraphics packages that fix two security issues are now available for Red Hat Enterprise Linux 4 and 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.

The kdegraphics packages contain applications for the K Desktop Environment, including KPDF, a viewer for Portable Document Format (PDF) files.

An uninitialized pointer use flaw was discovered in KPDF. An attacker could create a malicious PDF file that, when opened, would cause KPDF to crash or, potentially, execute arbitrary code. (CVE-2010-3702)

An array index error was found in the way KPDF parsed PostScript Type 1 fonts embedded in PDF documents. An attacker could create a malicious PDF file that, when opened, would cause KPDF to crash or, potentially, execute arbitrary code. (CVE-2010-3704)

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

An updated gpdf package that fixes two security issues is now available for Red Hat Enterprise Linux 4.

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.

GPdf is a viewer for Portable Document Format (PDF) files.

An uninitialized pointer use flaw was discovered in GPdf. An attacker could create a malicious PDF file that, when opened, would cause GPdf to crash or, potentially, execute arbitrary code. (CVE-2010-3702)

An array index error was found in the way GPdf parsed PostScript Type 1 fonts embedded in PDF documents. An attacker could create a malicious PDF file that, when opened, would cause GPdf to crash or, potentially, execute arbitrary code. (CVE-2010-3704)

Users are advised to upgrade to this updated package, which contains backported patches to correct these issues.

An updated xpdf package that fixes two security issues is now available for Red Hat Enterprise Linux 4.

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.

Xpdf is an X Window System based viewer for Portable Document Format (PDF) files.

An uninitialized pointer use flaw was discovered in Xpdf. An attacker could create a malicious PDF file that, when opened, would cause Xpdf to crash or, potentially, execute arbitrary code. (CVE-2010-3702)

An array index error was found in the way Xpdf parsed PostScript Type 1 fonts embedded in PDF documents. An attacker could create a malicious PDF file that, when opened, would cause Xpdf to crash or, potentially, execute arbitrary code. (CVE-2010-3704)

Users are advised to upgrade to this updated package, which contains backported patches to correct these issues.

An updated xpdf package that fixes one security issue is now available for Red Hat Enterprise Linux 3.

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.

Xpdf is an X Window System based viewer for Portable Document Format (PDF) files.

An uninitialized pointer use flaw was discovered in Xpdf. An attacker could create a malicious PDF file that, when opened, would cause Xpdf to crash or, potentially, execute arbitrary code. (CVE-2010-3702)

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

Updated postgresql and postgresql84 packages that fix one security issue are now available for Red Hat Enterprise Linux 4 and 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.

PostgreSQL is an advanced object-relational database management system (DBMS). PL/Perl and PL/Tcl allow users to write PostgreSQL functions in the Perl and Tcl languages. The PostgreSQL SECURITY DEFINER parameter, which can be used when creating a new PostgreSQL function, specifies that the function will be executed with the privileges of the user that created it.

It was discovered that a user could utilize the features of the PL/Perl and PL/Tcl languages to modify the behavior of a SECURITY DEFINER function created by a different user. If the PL/Perl or PL/Tcl language was used to implement a SECURITY DEFINER function, an authenticated database user could use a PL/Perl or PL/Tcl script to modify the behavior of that function during subsequent calls in the same session. This would result in the modified or injected code also being executed with the privileges of the user who created the SECURITY DEFINER function, possibly leading to privilege escalation.
(CVE-2010-3433)

For Red Hat Enterprise Linux 4, the updated postgresql packages upgrade PostgreSQL to version 7.4.30. Refer to the PostgreSQL Release Notes for a list of changes :

http://www.postgresql.org/docs/7.4/static/release.html

For Red Hat Enterprise Linux 5, the updated postgresql packages upgrade PostgreSQL to version 8.1.22, and the updated postgresql84 packages upgrade PostgreSQL to version 8.4.5. Refer to the PostgreSQL Release Notes for a list of changes :

http://www.postgresql.org/docs/8.1/static/release.html http://www.postgresql.org/docs/8.4/static/release.html

All PostgreSQL users are advised to upgrade to these updated packages, which correct this issue. If the postgresql service is running, it will be automatically restarted after installing this update.

Updated freetype packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 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.

FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. The freetype packages for Red Hat Enterprise Linux 4 provide both the FreeType 1 and FreeType 2 font engines. The freetype packages for Red Hat Enterprise Linux 5 provide only the FreeType 2 font engine.

It was discovered that the FreeType font rendering engine improperly validated certain position values when processing input streams. If a user loaded a specially crafted font file with an application linked against FreeType, and the relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could trigger a heap-based buffer overflow in the libXft library, causing the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3311)

A stack-based buffer overflow flaw was found in the way the FreeType font rendering engine processed some PostScript Type 1 fonts. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2808)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2806)

A stack overflow flaw was found in the way the FreeType font rendering engine processed PostScript Type 1 font files that contain nested Standard Encoding Accented Character (seac) calls. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash. (CVE-2010-3054)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

Users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The X server must be restarted (log out, then log back in) for this update to take effect.

Updated freetype packages that fix three security issues are now available for Red Hat Enterprise Linux 3.

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.

FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. The freetype packages for Red Hat Enterprise Linux 3 provide both the FreeType 1 and FreeType 2 font engines.

It was discovered that the FreeType font rendering engine improperly validated certain position values when processing input streams. If a user loaded a specially crafted font file with an application linked against FreeType, and the relevant font glyphs were subsequently rendered with the X FreeType library (libXft), it could trigger a heap-based buffer overflow in the libXft library, causing the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-3311)

An array index error was found in the way the FreeType font rendering engine processed certain PostScript Type 42 font files. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2806)

A stack overflow flaw was found in the way the FreeType font rendering engine processed PostScript Type 1 font files that contain nested Standard Encoding Accented Character (seac) calls. If a user loaded a specially crafted font file with an application linked against FreeType, it could cause the application to crash. (CVE-2010-3054)

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

Users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The X server must be restarted (log out, then log back in) for this update to take effect.

Updated mikmod packages that fix multiple security issues are now available for Red Hat Enterprise Linux 3, 4, and 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.

MikMod is a MOD music file player for Linux, UNIX, and similar operating systems. It supports various file formats including MOD, STM, S3M, MTM, XM, ULT, and IT.

Multiple input validation flaws, resulting in buffer overflows, were discovered in MikMod. Specially crafted music files in various formats could, when played, cause an application using the MikMod library to crash or, potentially, execute arbitrary code. (CVE-2009-3995, CVE-2009-3996, CVE-2007-6720)

All MikMod users should upgrade to these updated packages, which contain backported patches to correct these issues. All running applications using the MikMod library must be restarted for this update to take effect.

Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 4.

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 :

* The compat_alloc_user_space() function in the Linux kernel 32/64-bit compatibility layer implementation was missing sanity checks. This function could be abused in other areas of the Linux kernel if its length argument can be controlled from user-space. On 64-bit systems, a local, unprivileged user could use this flaw to escalate their privileges. (CVE-2010-3081, Important)

Red Hat would like to thank Ben Hawkes for reporting this issue.

Refer to Knowledgebase article DOC-40265 for further details:
https://access.redhat.com/kb/docs/DOC-40265

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

This update fixes the following security issue :

* The compat_alloc_user_space() function in the Linux kernel 32/64-bit compatibility layer implementation was missing sanity checks. This function could be abused in other areas of the Linux kernel if its length argument can be controlled from user-space. On 64-bit systems, a local, unprivileged user could use this flaw to escalate their privileges. (CVE-2010-3081, Important)

Red Hat would like to thank Ben Hawkes for reporting this issue.

Red Hat is aware that a public exploit for this issue is available.
Refer to Knowledgebase article DOC-40265 for further details:
https://access.redhat.com/kb/docs/DOC-40265

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 bzip2 packages that fix one security issue are now available for Red Hat Enterprise Linux 3, 4, and 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.

bzip2 is a freely available, high-quality data compressor. It provides both standalone compression and decompression utilities, as well as a shared library for use with other programs.

An integer overflow flaw was discovered in the bzip2 decompression routine. This issue could, when decompressing malformed archives, cause bzip2, or an application linked against the libbz2 library, to crash or, potentially, execute arbitrary code. (CVE-2010-0405)

Users of bzip2 should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running applications using the libbz2 library must be restarted for the update to take effect.

Updated samba3x 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 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.

Samba is a suite of programs used by machines to share files, printers, and other information.

A missing array boundary checking flaw was found in the way Samba parsed the binary representation of Windows security identifiers (SIDs). A malicious client could send a specially crafted SMB request to the Samba server, resulting in arbitrary code execution with the privileges of the Samba server (smbd). (CVE-2010-3069)

Users of Samba are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the smb service will be restarted automatically.

Updated samba packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 3, 4, and 5, and Red Hat Enterprise Linux 4.7, 5.3, and 5.4 Extended Update Support.

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.

Samba is a suite of programs used by machines to share files, printers, and other information.

A missing array boundary checking flaw was found in the way Samba parsed the binary representation of Windows security identifiers (SIDs). A malicious client could send a specially crafted SMB request to the Samba server, resulting in arbitrary code execution with the privileges of the Samba server (smbd). (CVE-2010-3069)

For Red Hat Enterprise Linux 4, this update also fixes the following bug :

* Previously, the restorecon utility was required during the installation of the samba-common package. As a result, attempting to update samba without this utility installed may have failed with the following error :

/var/tmp/rpm-tmp.[xxxxx]: line 7: restorecon: command not found

With this update, the utility is only used when it is already present on the system, and the package is now always updated as expected.
(BZ#629602)

Users of Samba are advised to upgrade to these updated packages, which correct these issues. After installing this update, the smb service will be restarted automatically.

Updated rpm packages that fix one security issue and one bug 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.

The RPM Package Manager (RPM) is a command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages.

It was discovered that RPM did not remove setuid and setgid bits set on binaries when upgrading packages. A local attacker able to create hard links to binaries could use this flaw to keep those binaries on the system, at a specific version level and with the setuid or setgid bit set, even if the package providing them was upgraded by a system administrator. This could have security implications if a package was upgraded because of a security flaw in a setuid or setgid program.
(CVE-2010-2059)

This update also fixes the following bug :

* A memory leak in the communication between RPM and the Security-Enhanced Linux (SELinux) subsystem, which could have caused extensive memory consumption. In reported cases, this issue was triggered by running rhn_check when errata were scheduled to be applied. (BZ#627630)

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

An updated sudo package that fixes one security issue is 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 sudo (superuser do) utility allows system administrators to give certain users the ability to run commands as root.

A flaw was found in the way sudo handled Runas specifications containing both a user and a group list. If a local user were authorized by the sudoers file to perform their sudo commands with the privileges of a specified user and group, they could use this flaw to run those commands with the privileges of either an arbitrary user or group on the system. (CVE-2010-2956)

Red Hat would like to thank Markus Wuethrich of Swiss Post - PostFinance for reporting this issue.

Users of sudo 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 4 and 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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the processing of malformed HTML mail content. An HTML mail message containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-3169)

A buffer overflow flaw was found in Thunderbird. An HTML mail message containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-2765)

A use-after-free flaw and several dangling pointer flaws were found in Thunderbird. An HTML mail message containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-2760, CVE-2010-2767, CVE-2010-3167, CVE-2010-3168)

A cross-site scripting (XSS) flaw was found in Thunderbird. Remote HTML content could cause Thunderbird to execute JavaScript code with the permissions of different remote HTML content. (CVE-2010-2768)

Note: JavaScript support is disabled by default in Thunderbird. None of the above issues are exploitable unless JavaScript is enabled.

All Thunderbird users should upgrade to this updated package, which resolves these issues. All running instances of Thunderbird must be restarted for the update to take effect.

Updated firefox packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.

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-2010-3169, CVE-2010-2762)

Several use-after-free and dangling pointer flaws were found 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-2010-2760, CVE-2010-2766, CVE-2010-2767, CVE-2010-3167, CVE-2010-3168)

Multiple buffer overflow flaws were found 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-2010-2765, CVE-2010-3166)

Multiple cross-site scripting (XSS) flaws were found in Firefox. A web page containing malicious content could cause Firefox to run JavaScript code with the permissions of a different website.
(CVE-2010-2768, CVE-2010-2769)

A flaw was found in the Firefox XMLHttpRequest object. A remote site could use this flaw to gather information about servers on an internal private network. (CVE-2010-2764)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.9. You can find a link to the Mozilla advisories in the References section of this erratum.

Note: After installing this update, Firefox will fail to connect (with HTTPS) to a server using the SSL DHE (Diffie-Hellman Ephemeral) key exchange if the server's ephemeral key is too small. Connecting to such servers is a security risk as an ephemeral key that is too small makes the SSL connection vulnerable to attack. Refer to the Solution section for further information.

All Firefox users should upgrade to these updated packages, which contain Firefox version 3.6.9, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 3 and 4.

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.

SeaMonkey is an open source web browser, email and newsgroup client, IRC chat client, and HTML editor.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2010-3169)

A buffer overflow flaw was found in SeaMonkey. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2010-2765)

A use-after-free flaw and several dangling pointer flaws were found in SeaMonkey. A web page containing malicious content could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2010-2760, CVE-2010-2767, CVE-2010-3167, CVE-2010-3168)

A cross-site scripting (XSS) flaw was found in SeaMonkey. A web page containing malicious content could cause SeaMonkey to run JavaScript code with the permissions of a different website. (CVE-2010-2768)

All SeaMonkey users should upgrade to these updated packages, which correct these issues. After installing the update, SeaMonkey must be restarted for the changes to take effect.

Updated rpm packages that fix two security issues are now available for Red Hat Enterprise Linux 4.

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 RPM Package Manager (RPM) is a command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages.

It was discovered that RPM did not remove setuid and setgid bits set on binaries when upgrading or removing packages. A local attacker able to create hard links to binaries could use this flaw to keep those binaries on the system, at a specific version level and with the setuid or setgid bit set, even if the package providing them was upgraded or removed by a system administrator. This could have security implications if a package was upgraded or removed because of a security flaw in a setuid or setgid program. (CVE-2005-4889, CVE-2010-2059)

All users of rpm are advised to upgrade to these updated packages, which contain a backported patch to correct these issues.

Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 4.

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 :

* When an application has a stack overflow, the stack could silently overwrite another memory mapped area instead of a segmentation fault occurring, which could cause an application to execute arbitrary code, possibly leading to privilege escalation. It is known that the X Window System server can be used to trigger this flaw. (CVE-2010-2240, Important)

Red Hat would like to thank the X.Org security team for reporting this issue. Upstream acknowledges Rafal Wojtczuk as the original reporter.

Users should upgrade to these updated packages, which contain backported patches to correct this issue. The system must be rebooted for this update to take effect.

An updated gdm package that fixes one security issue and one bug is now available for Red Hat Enterprise Linux 4.

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 GNOME Display Manager (GDM) is a configurable re-implementation of XDM, the X Display Manager. GDM allows you to log in to your system with the X Window System running, and supports running several different X sessions on your local machine at the same time.

A flaw was found in the way the gdm package was built. The gdm package was missing TCP wrappers support on 64-bit platforms, which could result in an administrator believing they had access restrictions enabled when they did not. (CVE-2007-5079)

This update also fixes the following bug :

* sometimes the system would hang instead of properly shutting down when a user chose 'Shut down' from the login screen. (BZ#625818)

All users should upgrade to this updated package, which contains backported patches to correct these issues. GDM must be restarted for this update to take effect. Rebooting achieves this, but changing the runlevel from 5 to 3 and back to 5 also restarts GDM.

Updated qspice 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. 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 Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol used in Red Hat Enterprise Linux for viewing virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor, or on Red Hat Enterprise Virtualization Hypervisor.

It was found that the libspice component of QEMU-KVM on the host did not validate all pointers provided from a guest system's QXL graphics card driver. A privileged guest user could use this flaw to cause the host to dereference an invalid pointer, causing the guest to crash (denial of service) or, possibly, resulting in the privileged guest user escalating their privileges on the host. (CVE-2010-0428)

It was found that the libspice component of QEMU-KVM on the host could be forced to perform certain memory management operations on memory addresses controlled by a guest. A privileged guest user could use this flaw to crash the guest (denial of service) or, possibly, escalate their privileges on the host. (CVE-2010-0429)

All qspice users should upgrade to these updated packages, which contain backported patches to correct these issues.

Updated kvm packages that fix three security issues and multiple bugs 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.

It was found that QEMU-KVM on the host did not validate all pointers provided from a guest system's QXL graphics card driver. A privileged guest user could use this flaw to cause the host to dereference an invalid pointer, causing the guest to crash (denial of service) or, possibly, resulting in the privileged guest user escalating their privileges on the host. (CVE-2010-0431)

A flaw was found in QEMU-KVM, allowing the guest some control over the index used to access the callback array during sub-page MMIO initialization. A privileged guest user could use this flaw to crash the guest (denial of service) or, possibly, escalate their privileges on the host. (CVE-2010-2784)

A NULL pointer dereference flaw was found when the host system had a processor with the Intel VT-x extension enabled. A privileged guest user could use this flaw to trick the host into emulating a certain instruction, which could crash the host (denial of service).
(CVE-2010-0435)

This update also fixes the following bugs :

* running a 'qemu-img' check on a faulty virtual machine image ended with a segmentation fault. With this update, the segmentation fault no longer occurs when running the 'qemu-img' check. (BZ#610342)

* when attempting to transfer a file between two guests that were joined in the same virtual LAN (VLAN), the receiving guest unexpectedly quit. With this update, the transfer completes successfully. (BZ#610343)

* installation of a system was occasionally failing in KVM. This was caused by KVM using wrong permissions for large guest pages. With this update, the installation completes successfully. (BZ#616796)

* previously, the migration process would fail for a virtual machine because the virtual machine could not map all the memory. This was caused by a conflict that was initiated when a virtual machine was initially run and then migrated right away. With this update, the conflict no longer occurs and the migration process no longer fails.
(BZ#618205)

* using a thinly provisioned VirtIO disk on iSCSI storage and performing a 'qemu-img' check during an 'e_no_space' event returned cluster errors. With this update, the errors no longer appear.
(BZ#618206)

All KVM users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: The procedure in the Solution section must be performed before this update will take effect.

Updated kernel packages that fix multiple security issues and one bug are now available for Red Hat Enterprise Linux 4.

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 CIFSSMBWrite() function in the Linux kernel Common Internet File System (CIFS) implementation. A remote attacker could send a specially crafted SMB response packet to a target CIFS client, resulting in a kernel panic (denial of service).
(CVE-2010-2248, Important)

* buffer overflow flaws were found in the Linux kernel's implementation of the server-side External Data Representation (XDR) for the Network File System (NFS) version 4. An attacker on the local network could send a specially crafted large compound request to the NFSv4 server, which could possibly result in a kernel panic (denial of service) or, potentially, code execution. (CVE-2010-2521, Important)

This update also fixes the following bug :

* the rpc_call_async() function in the SUN Remote Procedure Call (RPC) subsystem in the Linux kernel had a reference counting bug. In certain situations, some Network Lock Manager (NLM) messages may have triggered this bug on NFSv2 and NFSv3 servers, leading to a kernel panic (with 'kernel BUG at fs/lockd/host.c:[xxx]!' logged to '/var/log/messages'). (BZ#612962)

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 ImageMagick packages that fix one security issue are now available for Red Hat Enterprise Linux 4.

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.

ImageMagick is an image display and manipulation tool for the X Window System that can read and write multiple image formats.

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the ImageMagick routine responsible for creating X11 images.
An attacker could create a specially crafted image file that, when opened by a victim, would cause ImageMagick to crash or, potentially, execute arbitrary code. (CVE-2009-1882)

Users of ImageMagick are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running instances of ImageMagick must be restarted for this update to take effect.

Updated ImageMagick packages that fix one security issue and one bug 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.

ImageMagick is an image display and manipulation tool for the X Window System that can read and write multiple image formats.

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the ImageMagick routine responsible for creating X11 images.
An attacker could create a specially crafted image file that, when opened by a victim, would cause ImageMagick to crash or, potentially, execute arbitrary code. (CVE-2009-1882)

This update also fixes the following bug :

* previously, portions of certain RGB images on the right side were not rendered and left black when converting or displaying them. With this update, RGB images display correctly. (BZ#625058)

Users of ImageMagick are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All running instances of ImageMagick must be restarted for this update to take effect.

An updated spice-xpi package that fixes two security issues and three bugs is 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 Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol used in Red Hat Enterprise Linux for viewing virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor, or on Red Hat Enterprise Virtualization Hypervisor.

The spice-xpi package provides a plug-in that allows the SPICE client to run from within Mozilla Firefox.

A race condition was found in the way the SPICE Firefox plug-in and the SPICE client communicated. A local attacker could use this flaw to trick the plug-in and the SPICE client into communicating over an attacker-controlled socket, possibly gaining access to authentication details, or resulting in a man-in-the-middle attack on the SPICE connection. (CVE-2010-2792)

It was found that the SPICE Firefox plug-in used a predictable name for its log file. A local attacker could use this flaw to conduct a symbolic link attack, allowing them to overwrite arbitrary files accessible to the user running Firefox. (CVE-2010-2794)

This update also fixes the following bugs :

* a bug prevented users of Red Hat Enterprise Linux 5.5, with all updates applied, from running the SPICE Firefox plug-in when using Firefox 3.6.4. With this update, the plug-in works correctly with Firefox 3.6.4 and the latest version in Red Hat Enterprise Linux 5.5, Firefox 3.6.7. (BZ#618244)

* unused code has been removed during source code refactoring. This also resolves a bug in the SPICE Firefox plug-in that caused it to close random file descriptors. (BZ#594006, BZ#619067)

Note: This update should be installed together with the RHSA-2010:0632 qspice-client update:
https://rhn.redhat.com/errata/RHSA-2010-0632.html

Users of spice-xpi should upgrade to this updated package, which contains backported patches to correct these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Updated openoffice.org packages that fix two security issues are now available for Red Hat Enterprise Linux 3 and 4.

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.

OpenOffice.org is an office productivity suite that includes desktop applications, such as a word processor, spreadsheet application, presentation manager, formula editor, and a drawing program.

An integer truncation error, leading to a heap-based buffer overflow, was found in the way the OpenOffice.org Impress presentation application sanitized a file's dictionary property items. An attacker could use this flaw to create a specially crafted Microsoft Office PowerPoint file that, when opened, would cause OpenOffice.org Impress to crash or, possibly, execute arbitrary code with the privileges of the user running OpenOffice.org Impress. (CVE-2010-2935)

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way OpenOffice.org Impress processed polygons in input documents. An attacker could use this flaw to create a specially crafted Microsoft Office PowerPoint file that, when opened, would cause OpenOffice.org Impress to crash or, possibly, execute arbitrary code with the privileges of the user running OpenOffice.org Impress.
(CVE-2010-2936)

All users of OpenOffice.org are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
For Red Hat Enterprise Linux 3, this erratum provides updated openoffice.org packages. For Red Hat Enterprise Linux 4, this erratum provides updated openoffice.org and openoffice.org2 packages. All running instances of OpenOffice.org applications must be restarted for this update to take effect.

An updated qspice-client package that fixes one security issue is 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.

The Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol used in Red Hat Enterprise Linux for viewing virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor, or on Red Hat Enterprise Virtualization Hypervisor.

The qspice-client package provides the client side of the SPICE protocol.

A race condition was found in the way the SPICE Mozilla Firefox plug-in and the SPICE client communicated. A local attacker could use this flaw to trick the plug-in and the SPICE client into communicating over an attacker-controlled socket, possibly gaining access to authentication details, or resulting in a man-in-the-middle attack on the SPICE connection. (CVE-2010-2792)

Users of qspice-client should upgrade to this updated package, which contains a backported patch to correct this issue.

Updated wireshark packages that fix several security issues are now available for Red Hat Enterprise Linux 3, 4, and 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.

Wireshark is a program for monitoring network traffic. Wireshark was previously known as Ethereal.

Multiple buffer overflow flaws were found in the Wireshark SigComp Universal Decompressor Virtual Machine (UDVM) dissector. If Wireshark read a malformed packet off a network or opened a malicious dump file, it could crash or, possibly, execute arbitrary code as the user running Wireshark. (CVE-2010-2287, CVE-2010-2995)

Several denial of service flaws were found in Wireshark. Wireshark could crash or stop responding if it read a malformed packet off a network, or opened a malicious dump file. (CVE-2010-1455, CVE-2010-2283, CVE-2010-2284, CVE-2010-2286)

Users of Wireshark should upgrade to these updated packages, which contain Wireshark version 1.0.15, and resolve these issues. All running instances of Wireshark must be restarted for the update to take effect.

Updated kernel packages that fix three security issues and several bugs are now available for Red Hat Enterprise Linux 4.

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.

Security fixes :

* a NULL pointer dereference flaw was found in the Linux kernel NFSv4 implementation. Several of the NFSv4 file locking functions failed to check whether a file had been opened on the server before performing locking operations on it. A local, unprivileged user on a system with an NFSv4 share mounted could possibly use this flaw to cause a kernel panic (denial of service) or escalate their privileges.
(CVE-2009-3726, Important)

* a flaw was found in the sctp_process_unk_param() function in the Linux kernel Stream Control Transmission Protocol (SCTP) implementation. A remote attacker could send a specially crafted SCTP packet to an SCTP listening port on a target system, causing a kernel panic (denial of service). (CVE-2010-1173, Important)

* a race condition between finding a keyring by name and destroying a freed keyring was found in the Linux kernel key management facility. A local, unprivileged user could use this flaw to cause a kernel panic (denial of service) or escalate their privileges. (CVE-2010-1437, Important)

Red Hat would like to thank Simon Vallet for responsibly reporting CVE-2009-3726; and Jukka Taimisto and Olli Jarva of Codenomicon Ltd, Nokia Siemens Networks, and Wind River on behalf of their customer, for responsibly reporting CVE-2010-1173.

Bug fixes :

* RHBA-2007:0791 introduced a regression in the Journaling Block Device (JBD). Under certain circumstances, removing a large file (such as 300 MB or more) did not result in inactive memory being freed, leading to the system having a large amount of inactive memory. Now, the memory is correctly freed. (BZ#589155)

* the timer_interrupt() routine did not scale lost real ticks to logical ticks correctly, possibly causing time drift for 64-bit Red Hat Enterprise Linux 4 KVM (Kernel-based Virtual Machine) guests that were booted with the 'divider=x' kernel parameter set to a value greater than 1. 'warning: many lost ticks' messages may have been logged on the affected guest systems. (BZ#590551)

* a bug could have prevented NFSv3 clients from having the most up-to-date file attributes for files on a given NFSv3 file system. In cases where a file type changed, such as if a file was removed and replaced with a directory of the same name, the NFSv3 client may not have noticed this change until stat(2) was called (for example, by running 'ls -l'). (BZ#596372)

* RHBA-2007:0791 introduced bugs in the Linux kernel PCI-X subsystem.
These could have caused a system deadlock on some systems where the BIOS set the default Maximum Memory Read Byte Count (MMRBC) to 4096, and that also use the Intel PRO/1000 Linux driver, e1000. Errors such as 'e1000: eth[x]: e1000_clean_tx_irq: Detected Tx Unit Hang' were logged. (BZ#596374)

* an out of memory condition in a KVM guest, using the virtio-net network driver and also under heavy network stress, could have resulted in that guest being unable to receive network traffic. Users had to manually remove and re-add the virtio_net module and restart the network service before networking worked as expected. Such memory conditions no longer prevent KVM guests receiving network traffic.
(BZ#597310)

* when an SFQ qdisc that limited the queue size to two packets was added to a network interface, sending traffic through that interface resulted in a kernel crash. Such a qdisc no longer results in a kernel crash. (BZ#597312)

* when an NFS client opened a file with the O_TRUNC flag set, it received a valid stateid, but did not use that stateid to perform the SETATTR call. Such cases were rejected by Red Hat Enterprise Linux 4 NFS servers with an 'NFS4ERR_BAD_STATEID' error, possibly preventing some NFS clients from writing files to an NFS file system. (BZ#597314)

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 freetype packages that fix various security issues are now available for Red Hat Enterprise Linux 3.

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.

FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. These packages provide both the FreeType 1 and FreeType 2 font engines.

An integer overflow flaw was found in the way the FreeType font engine processed font files. If a user loaded a carefully-crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2500)

Several buffer overflow flaws were found in the FreeType demo applications. If a user loaded a carefully-crafted font file with a demo application, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2527, CVE-2010-2541)

Red Hat would like to thank Robert Swiecki of the Google Security Team for the discovery of the CVE-2010-2500 and CVE-2010-2527 issues.

Note: All of the issues in this erratum only affect the FreeType 2 font engine.

Users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The X server must be restarted (log out, then log back in) for this update to take effect.

ID	Name	Severity
50803	CentOS 4 / 5 : thunderbird (CESA-2010:0812)	critical
50802	CentOS 5 : cups (CESA-2010:0811)	high
50801	CentOS 3 / 4 : seamonkey (CESA-2010:0810)	critical
50800	CentOS 5 : xulrunner (CESA-2010:0809)	critical
50799	CentOS 4 : firefox (CESA-2010:0808)	critical
50798	CentOS 5 : glibc (CESA-2010:0793)	high
50797	CentOS 5 : kernel (CESA-2010:0792)	high
50796	CentOS 4 / 5 : pidgin (CESA-2010:0788)	medium
50795	CentOS 5 : glibc (CESA-2010:0787)	medium
50794	CentOS 4 / 5 : quagga (CESA-2010:0785)	medium
50793	CentOS 4 / 5 : firefox (CESA-2010:0782)	high
50792	CentOS 3 / 4 : seamonkey (CESA-2010:0781)	high
50791	CentOS 4 / 5 : thunderbird (CESA-2010:0780)	high
50790	CentOS 4 : kernel (CESA-2010:0779)	medium
50003	CentOS 5 : java-1.6.0-openjdk (CESA-2010:0768)	critical
49936	CentOS 5 : poppler (CESA-2010:0749)	medium
49814	CentOS 4 : cups (CESA-2010:0755)	medium
49813	CentOS 3 : cups (CESA-2010:0754)	medium
49812	CentOS 4 / 5 : kdegraphics (CESA-2010:0753)	medium
49811	CentOS 4 : gpdf (CESA-2010:0752)	medium
49810	CentOS 4 : xpdf (CESA-2010:0751)	medium
49809	CentOS 3 : xpdf (CESA-2010:0750)	medium
49781	CentOS 4 / 5 : postgresql / postgresql84 (CESA-2010:0742)	medium
49716	CentOS 4 / 5 : freetype (CESA-2010:0737)	high
49715	CentOS 3 : freetype (CESA-2010:0736)	high
49714	CentOS 3 / 4 / 5 : mikmod (CESA-2010:0720)	high
49713	CentOS 4 : kernel (CESA-2010:0718)	high
49634	CentOS 5 : kernel (CESA-2010:0704)	high
49633	CentOS 3 / 4 / 5 : bzip2 (CESA-2010:0703)	medium
49262	CentOS 5 : samba3x (CESA-2010:0698)	high
49261	CentOS 3 / 4 / 5 : samba (CESA-2010:0697)	high
49204	CentOS 5 : rpm (CESA-2010:0679)	high
49203	CentOS 5 : sudo (CESA-2010:0675)	medium
49183	CentOS 4 / 5 : thunderbird (CESA-2010:0682)	high
49182	CentOS 4 / 5 : firefox (CESA-2010:0681)	high
49181	CentOS 3 / 4 : seamonkey (CESA-2010:0680)	high
49180	CentOS 4 : rpm (CESA-2010:0678)	high
49179	CentOS 4 : kernel (CESA-2010:0676)	high
48912	CentOS 4 : gdm (CESA-2010:0657)	medium
48911	CentOS 5 : qspice (CESA-2010:0633)	medium
48910	CentOS 5 : kvm (CESA-2010:0627)	medium
48909	CentOS 4 : kernel (CESA-2010:0606)	critical
48745	CentOS 4 : ImageMagick (CESA-2010:0653)	high
48744	CentOS 5 : ImageMagick (CESA-2010:0652)	high
48743	CentOS 5 : spice-xpi (CESA-2010:0651)	low
48742	CentOS 3 / 4 : openoffice.org (CESA-2010:0643)	high
48741	CentOS 5 : qspice-client (CESA-2010:0632)	low
48409	CentOS 4 / 5 : wireshark (CESA-2010:0625)	critical
48408	CentOS 4 : kernel (CESA-2010:0474)	high
48343	CentOS 3 : freetype (CESA-2010:0577)	medium

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