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-2010-1211, CVE-2010-2753, CVE-2010-1214)

A memory corruption flaw was found in the way SeaMonkey decoded certain PNG images. An attacker could create a specially crafted PNG image that, when opened, could cause SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey. (CVE-2010-1205)

A same-origin policy bypass flaw was found in SeaMonkey. 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 SeaMonkey. (CVE-2010-2754)

A flaw was found in the way SeaMonkey displayed the location bar when visiting a secure web page. A malicious server could use this flaw to present data that appears to originate from a secure server, even though it does not. (CVE-2010-2751)

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 libtiff packages that fix two 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.

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.

Multiple integer overflow flaws, leading to a buffer overflow, were discovered in libtiff. An attacker could use these flaws to create a specially crafted TIFF file that, when opened, would cause an application linked against libtiff to crash or, possibly, execute arbitrary code. (CVE-2010-1411)

An input validation flaw was discovered in libtiff. An attacker could use this flaw to create a specially crafted TIFF file that, when opened, would cause an application linked against libtiff to crash.
(CVE-2010-2598)

Red Hat would like to thank Apple Product Security for responsibly reporting the CVE-2010-1411 flaw, who credit Kevin Finisterre of digitalmunition.com for the discovery of the issue.

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

Updated dbus-glib 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.

dbus-glib is an add-on library to integrate the standard D-Bus library with the GLib main loop and threading model. NetworkManager is a network link manager that attempts to keep a wired or wireless network connection active at all times.

It was discovered that dbus-glib did not enforce the 'access' flag on exported GObject properties. If such a property were read/write internally but specified as read-only externally, a malicious, local user could use this flaw to modify that property of an application.
Such a change could impact the application's behavior (for example, if an IP address were changed the network may not come up properly after reboot) and possibly lead to a denial of service. (CVE-2010-1172)

Due to the way dbus-glib translates an application's XML definitions of service interfaces and properties into C code at application build time, applications built against dbus-glib that use read-only properties needed to be rebuilt to fully fix the flaw. As such, this update provides NetworkManager packages that have been rebuilt against the updated dbus-glib packages. No other applications shipped with Red Hat Enterprise Linux 5 were affected.

All dbus-glib and NetworkManager users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. Running instances of NetworkManager must be restarted (service NetworkManager restart) for this update to take effect.

Updated libvirt packages that fix two 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 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 libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remotely managing virtualized systems.

It was found that libvirt did not set the user-defined backing store format when creating a new image, possibly resulting in applications having to probe the backing store to discover the format. A privileged guest user could use this flaw to read arbitrary files on the host.
(CVE-2010-2239)

It was found that libvirt created insecure iptables rules on the host when a guest system was configured for IP masquerading, allowing the guest to use privileged ports on the host when accessing network resources. A privileged guest user could use this flaw to access network resources that would otherwise not be accessible to the guest.
(CVE-2010-2242)

Red Hat would like to thank Jeremy Nickurak for reporting the CVE-2010-2242 issue.

This update also fixes the following bugs :

* a Linux software bridge assumes the MAC address of the enslaved interface with the numerically lowest MAC address. When the bridge changes its MAC address, for a period of time it does not relay packets across network segments, resulting in a temporary network 'blackout'. The bridge should thus avoid changing its MAC address in order not to disrupt network communications.

The Linux kernel assigns network TAP devices a random MAC address.
Occasionally, this random MAC address is lower than that of the physical interface which is enslaved (for example, eth0 or eth1), which causes the bridge to change its MAC address, thereby disrupting network communications for a period of time.

With this update, libvirt now sets an explicit MAC address for all TAP devices created using the configured MAC address from the XML, but with the high bit set to 0xFE. The result is that TAP device MAC addresses are now numerically greater than those for physical interfaces, and bridges should no longer attempt to switch their MAC address to that of the TAP device, thus avoiding potential spurious network disruptions. (BZ#617243)

* a memory leak in the libvirt driver for the Xen hypervisor has been fixed with this update. (BZ#619711)

* the xm and virsh management user interfaces for virtual guests can be called on the command line to list the number of active guests.
However, under certain circumstances, running the 'virsh list' command resulted in virsh not listing all of the virtual guests that were active (that is, running) at the time. This update incorporates a fix that matches the logic used for determining active guests with that of 'xm list', such that both commands should now list the same number of active virtual guests under all circumstances. (BZ#618200)

All users of libvirt are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the system must be rebooted 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 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 kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* instances of unsafe sprintf() use were found in the Linux kernel Bluetooth implementation. Creating a large number of Bluetooth L2CAP, SCO, or RFCOMM sockets could result in arbitrary memory pages being overwritten. A local, unprivileged user could use this flaw to cause a kernel panic (denial of service) or escalate their privileges.
(CVE-2010-1084, Important)

* a flaw was found in the Xen hypervisor implementation when using the Intel Itanium architecture, allowing guests to enter an unsupported state. An unprivileged guest user could trigger this flaw by setting the BE (Big Endian) bit of the Processor Status Register (PSR), leading to the guest crashing (denial of service). (CVE-2010-2070, Important)

* 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)

* a flaw was found in the handling of the SWAPEXT IOCTL in the Linux kernel XFS file system implementation. A local user could use this flaw to read write-only files, that they do not own, on an XFS file system. This could lead to unintended information disclosure.
(CVE-2010-2226, Moderate)

* a flaw was found in the dns_resolver upcall used by CIFS. A local, unprivileged user could redirect a Microsoft Distributed File System link to another IP address, tricking the client into mounting the share from a server of the user's choosing. (CVE-2010-2524, Moderate)

* a missing check was found in the mext_check_arguments() function in the ext4 file system code. A local user could use this flaw to cause the MOVE_EXT IOCTL to overwrite the contents of an append-only file on an ext4 file system, if they have write permissions for that file.
(CVE-2010-2066, Low)

Red Hat would like to thank Neil Brown for reporting CVE-2010-1084, and Dan Rosenberg for reporting CVE-2010-2226 and CVE-2010-2066.

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

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 two 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 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.

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 and 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.

Two stack overflow flaws were found in the way the FreeType font engine processed certain Compact Font Format (CFF) character strings (opcodes). 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-2010-1797)

Red Hat would like to thank Braden Thomas of the Apple Product Security team for reporting these issues.

Note: CVE-2010-1797 only affects the FreeType 2 font engine.

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

An updated gnupg2 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 GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and creating digital signatures, compliant with the proposed OpenPGP Internet standard and the S/MIME standard.

A use-after-free flaw was found in the way gpgsm, a Cryptographic Message Syntax (CMS) encryption and signing tool, handled X.509 certificates with a large number of Subject Alternate Names. A specially crafted X.509 certificate could, when imported, cause gpgsm to crash or, possibly, execute arbitrary code. (CVE-2010-2547)

All gnupg2 users should upgrade to this updated package, which contains a backported patch to correct this issue.

Updated firefox packages that fix a security issue are now available for Red Hat Enterprise Linux 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.

Mozilla Firefox is an open source web browser.

An invalid free flaw was found in Firefox's plugin handler. Malicious web content could result in an invalid memory pointer being freed, causing Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2010-2755)

All Firefox users should upgrade to these updated packages, which contain a backported patch that corrects this issue. After installing the update, Firefox 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.

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-2010-0174, CVE-2010-1200, CVE-2010-1211, CVE-2010-1214, CVE-2010-2753)

An integer overflow flaw was 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-2010-1199)

Several use-after-free flaws were found in Thunderbird. Viewing an HTML mail message containing malicious content could result in Thunderbird executing arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-0175, CVE-2010-0176, CVE-2010-0177)

A flaw was found in the way Thunderbird plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-1198)

A flaw was found in the way Thunderbird handled the 'Content-Disposition: attachment' HTTP header when the 'Content-Type:
multipart' HTTP header was also present. Loading remote HTTP content that allows arbitrary uploads and relies on the 'Content-Disposition:
attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users. (CVE-2010-1197)

A same-origin policy bypass flaw was found in Thunderbird. Remote HTML content could steal private data from different remote HTML content Thunderbird has loaded. (CVE-2010-2754)

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.

An updated firefox package that addresses security issues, fixes bugs, adds numerous enhancements, and upgrades Firefox to version 3.6.4, is now available for Red Hat Enterprise Linux 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.

Mozilla Firefox is an open source web browser.

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-2010-1121, CVE-2010-1200, CVE-2010-1202, CVE-2010-1203)

A flaw was found in the way browser plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running Firefox. (CVE-2010-1198)

Several integer overflow 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-2010-1196, CVE-2010-1199)

A focus stealing flaw was found in the way Firefox handled focus changes. A malicious website could use this flaw to steal sensitive data from a user, such as usernames and passwords. (CVE-2010-1125)

A flaw was found in the way Firefox handled the 'Content-Disposition:
attachment' HTTP header when the 'Content-Type: multipart' HTTP header was also present. A website that allows arbitrary uploads and relies on the 'Content-Disposition: attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users. (CVE-2010-1197)

A flaw was found in the Firefox Math.random() function. This function could be used to identify a browsing session and track a user across different websites. (CVE-2008-5913)

A flaw was found in the Firefox XML document loading security checks.
Certain security checks were not being called when an XML document was loaded. This could possibly be leveraged later by an attacker to load certain resources that violate the security policies of the browser or its add-ons. Note that this issue cannot be exploited by only loading an XML document. (CVE-2010-0182)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.4. You can find a link to the Mozilla advisories in the References section of this erratum.

This erratum upgrades Firefox from version 3.0.19 to version 3.6.4, and as such, contains multiple bug fixes and numerous enhancements.
Space precludes documenting these changes in this advisory. For details concerning these changes, refer to the Firefox Release Notes links in the References section of this erratum.

Important: Firefox 3.6.4 is not completely backwards-compatible with all Mozilla Add-ons and Firefox plug-ins that worked with Firefox 3.0.19. Firefox 3.6 checks compatibility on first-launch, and, depending on the individual configuration and the installed Add-ons and plug-ins, may disable said Add-ons and plug-ins, or attempt to check for updates and upgrade them. Add-ons and plug-ins may have to be manually updated.

All Firefox users should upgrade to this updated package, which contains Firefox version 3.6.4. After installing the update, Firefox must be restarted for the changes to take effect.

An updated lftp 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.

LFTP is a sophisticated file transfer program for the FTP and HTTP protocols. Like Bash, it has job control and uses the Readline library for input. It has bookmarks, built-in mirroring, and can transfer several files in parallel. It is designed with reliability in mind.

It was discovered that lftp trusted the file name provided in the Content-Disposition HTTP header. A malicious HTTP server could use this flaw to write or overwrite files in the current working directory of a victim running lftp, by sending a different file from what the victim requested. (CVE-2010-2251)

To correct this flaw, the following changes were made to lftp: the 'xfer:clobber' option now defaults to 'no', causing lftp to not overwrite existing files, and a new option, 'xfer:auto-rename', which defaults to 'no', has been introduced to control whether lftp should use server-suggested file names. Refer to the 'Settings' section of the lftp(1) manual page for additional details on changing lftp settings.

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

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 for the Java Servlet and JavaServer Pages (JSP) technologies.

A flaw was found in the way Tomcat handled the Transfer-Encoding header in HTTP requests. A specially crafted HTTP request could prevent Tomcat from sending replies, or cause Tomcat to return truncated replies, or replies containing data related to the requests of other users, for all subsequent HTTP requests. (CVE-2010-2227)

The Tomcat security update RHSA-2009:1164 did not, unlike the erratum text stated, provide a fix for CVE-2009-0781, a cross-site scripting (XSS) flaw in the examples calendar application. With some web browsers, remote attackers could use this flaw to inject arbitrary web script or HTML via the 'time' parameter. (CVE-2009-2696)

Two directory traversal flaws were found in the Tomcat deployment process. A specially crafted WAR file could, when deployed, cause a file to be created outside of the web root into any directory writable by the Tomcat user, or could lead to the deletion of files in the Tomcat host's work directory. (CVE-2009-2693, CVE-2009-2902)

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

Updated freetype packages that fix various 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.

An invalid memory management 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-2010-2498)

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 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-2010-2499, CVE-2010-2519)

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-2010-2498, CVE-2010-2500, CVE-2010-2499, CVE-2010-2519, 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.

An updated lvm2-cluster 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 lvm2-cluster package contains support for Logical Volume Management (LVM) in a clustered environment.

It was discovered that the cluster logical volume manager daemon (clvmd) did not verify the credentials of clients connecting to its control UNIX abstract socket, allowing local, unprivileged users to send control commands that were intended to only be available to the privileged root user. This could allow a local, unprivileged user to cause clvmd to exit, or request clvmd to activate, deactivate, or reload any logical volume on the local system or another system in the cluster. (CVE-2010-2526)

Note: This update changes clvmd to use a pathname-based socket rather than an abstract socket. As such, the lvm2 update RHBA-2010:0569, which changes LVM to also use this pathname-based socket, must also be installed for LVM to be able to communicate with the updated clvmd.

All lvm2-cluster users should upgrade to this updated package, which contains a backported patch to correct this issue. After installing the updated package, clvmd must be restarted for the update to take effect.

Updated w3m 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.

The w3m program is a pager (or text file viewer) that can also be used as a text mode web browser.

It was discovered that w3m is affected by the previously published 'null prefix attack', caused by incorrect handling of NULL characters in X.509 certificates. If an attacker is able to get a carefully-crafted certificate signed by a trusted Certificate Authority, the attacker could use the certificate during a man-in-the-middle attack and potentially confuse w3m into accepting it by mistake. (CVE-2010-2074)

All w3m users should upgrade to these updated packages, which contain a backported patch to correct this issue.

Updated SeaMonkey packages that fix a 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. 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.

An invalid free flaw was found in SeaMonkey's plugin handler.
Malicious web content could result in an invalid memory pointer being freed, causing SeaMonkey to crash or, potentially, execute arbitrary code with the privileges of the user running SeaMonkey.
(CVE-2010-2755)

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 firefox and xulrunner packages that fix a 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. 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.

An invalid free flaw was found in Firefox's plugin handler. Malicious web content could result in an invalid memory pointer being freed, causing Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running the Firefox application.
(CVE-2010-2755)

All Firefox users should upgrade to these updated packages, which contain a backported patch that corrects this issue. After installing the update, Firefox 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 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-2010-1208, CVE-2010-1209, CVE-2010-1211, CVE-2010-1212, CVE-2010-1214, CVE-2010-1215, CVE-2010-2752, CVE-2010-2753)

A memory corruption flaw was found in the way Firefox decoded certain PNG images. An attacker could create a specially crafted PNG image that, when opened, could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2010-1205)

Several same-origin policy bypass flaws were 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-2010-0654, CVE-2010-1207, CVE-2010-1213, CVE-2010-2754)

A flaw was found in the way Firefox presented the location bar to a user. A malicious website could trick a user into thinking they are visiting the site reported by the location bar, when the page is actually content controlled by an attacker. (CVE-2010-1206)

A flaw was found in the way Firefox displayed the location bar when visiting a secure web page. A malicious server could use this flaw to present data that appears to originate from a secure server, even though it does not. (CVE-2010-2751)

A flaw was found in the way Firefox displayed certain malformed characters. A malicious web page could use this flaw to bypass certain string sanitization methods, allowing it to display malicious information to users. (CVE-2010-1210)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.7. 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 3.6.7, which corrects these issues. After installing the update, Firefox 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 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 Thunderbird is a standalone mail and newsgroup client.

A memory corruption flaw was found in the way Thunderbird decoded certain PNG images. An attacker could create a mail message containing a specially crafted PNG image that, when opened, could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-1205)

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-2010-0174, CVE-2010-1200, CVE-2010-1211, CVE-2010-1214, CVE-2010-2753)

An integer overflow flaw was 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-2010-1199)

Several use-after-free flaws were found in Thunderbird. Viewing an HTML mail message containing malicious content could result in Thunderbird executing arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-0175, CVE-2010-0176, CVE-2010-0177)

A flaw was found in the way Thunderbird plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-1198)

A flaw was found in the way Thunderbird handled the 'Content-Disposition: attachment' HTTP header when the 'Content-Type:
multipart' HTTP header was also present. Loading remote HTTP content that allows arbitrary uploads and relies on the 'Content-Disposition:
attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users. (CVE-2010-1197)

A same-origin policy bypass flaw was found in Thunderbird. Remote HTML content could steal private data from different remote HTML content Thunderbird has loaded. (CVE-2010-2754)

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 openldap 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.

OpenLDAP is an open source suite of LDAP (Lightweight Directory Access Protocol) applications and development tools.

An uninitialized pointer use flaw was discovered in the way the slapd daemon handled modify relative distinguished name (modrdn) requests.
An authenticated user with privileges to perform modrdn operations could use this flaw to crash the slapd daemon via specially crafted modrdn requests. (CVE-2010-0211)

Red Hat would like to thank CERT-FI for responsibly reporting the CVE-2010-0211 flaw, who credit Ilkka Mattila and Tuomas Salomaki for the discovery of the issue.

A flaw was found in the way OpenLDAP handled NUL characters in the CommonName field of X.509 certificates. An attacker able to get a carefully-crafted certificate signed by a trusted Certificate Authority could trick applications using OpenLDAP libraries into accepting it by mistake, allowing the attacker to perform a man-in-the-middle attack. (CVE-2009-3767)

Users of OpenLDAP should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing this update, the OpenLDAP daemons will be restarted automatically.

Updated openldap 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 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.

OpenLDAP is an open source suite of LDAP (Lightweight Directory Access Protocol) applications and development tools.

Multiple flaws were discovered in the way the slapd daemon handled modify relative distinguished name (modrdn) requests. An authenticated user with privileges to perform modrdn operations could use these flaws to crash the slapd daemon via specially crafted modrdn requests.
(CVE-2010-0211, CVE-2010-0212)

Red Hat would like to thank CERT-FI for responsibly reporting these flaws, who credit Ilkka Mattila and Tuomas Salomaki for the discovery of the issues.

Users of OpenLDAP should upgrade to these updated packages, which contain a backported patch to correct these issues. After installing this update, the OpenLDAP daemons will be restarted automatically.

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-2010-1200)

A flaw was found in the way browser plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running SeaMonkey. (CVE-2010-1198)

An integer overflow flaw was 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-2010-1199)

A flaw was found in the way SeaMonkey processed mail attachments. A specially crafted mail message could cause SeaMonkey to crash.
(CVE-2010-0163)

A flaw was found in the way SeaMonkey handled the 'Content-Disposition: attachment' HTTP header when the 'Content-Type:
multipart' HTTP header was also present. A website that allows arbitrary uploads and relies on the 'Content-Disposition: attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users.
(CVE-2010-1197)

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 libpng and libpng10 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 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 libpng packages contain a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files.

A memory corruption flaw was found in the way applications, using the libpng library and its progressive reading method, decoded certain PNG images. An attacker could create a specially crafted PNG image that, when opened, could cause an application using libpng to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1205)

A denial of service flaw was found in the way applications using the libpng library decoded PNG images that have certain, highly compressed ancillary chunks. An attacker could create a specially crafted PNG image that could cause an application using libpng to consume excessive amounts of memory and CPU time, and possibly crash.
(CVE-2010-0205)

A memory leak flaw was found in the way applications using the libpng library decoded PNG images that use the Physical Scale (sCAL) extension. An attacker could create a specially crafted PNG image that could cause an application using libpng to exhaust all available memory and possibly crash or exit. (CVE-2010-2249)

A sensitive information disclosure flaw was found in the way applications using the libpng library processed 1-bit interlaced PNG images. An attacker could create a specially crafted PNG image that could cause an application using libpng to disclose uninitialized memory. (CVE-2009-2042)

Users of libpng and libpng10 should upgrade to these updated packages, which contain backported patches to correct these issues. All running applications using libpng or libpng10 must be restarted for the update to take effect.

Updated pcsc-lite 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 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.

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

Multiple buffer overflow flaws were discovered in the way the pcscd daemon, a resource manager that coordinates communications with smart card readers and smart cards connected to the system, handled client requests. A local user could create a specially crafted request that would cause the pcscd daemon to crash or, possibly, execute arbitrary code. (CVE-2010-0407, CVE-2009-4901)

Users of pcsc-lite should upgrade to these updated packages, which contain a backported patch to correct these issues. After installing this update, the pcscd daemon will be restarted automatically.

Updated avahi 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 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.

Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print to, and find shared files on other computers.

A flaw was found in the way the Avahi daemon (avahi-daemon) processed Multicast DNS (mDNS) packets with corrupted checksums. An attacker on the local network could use this flaw to cause avahi-daemon on a target system to exit unexpectedly via specially crafted mDNS packets.
(CVE-2010-2244)

A flaw was found in the way avahi-daemon processed incoming unicast mDNS messages. If the mDNS reflector were enabled on a system, an attacker on the local network could send a specially crafted unicast mDNS message to that system, resulting in its avahi-daemon flooding the network with a multicast packet storm, and consuming a large amount of CPU. Note: The mDNS reflector is disabled by default.
(CVE-2009-0758)

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

Updated libtiff 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.

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.

Multiple integer overflow flaws, leading to a buffer overflow, were discovered in libtiff. An attacker could use these flaws to create a specially crafted TIFF file that, when opened, would cause an application linked against libtiff to crash or, possibly, execute arbitrary code. (CVE-2010-1411)

Multiple input validation flaws were discovered in libtiff. An attacker could use these flaws to create a specially crafted TIFF file that, when opened, would cause an application linked against libtiff to crash. (CVE-2010-2481, CVE-2010-2483, CVE-2010-2595, CVE-2010-2597)

Red Hat would like to thank Apple Product Security for responsibly reporting the CVE-2010-1411 flaw, who credit Kevin Finisterre of digitalmunition.com for the discovery of the issue.

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

An updated scsi-target-utils package that fixes multiple security issues 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 scsi-target-utils package contains the daemon and tools to set up and monitor SCSI targets. Currently, iSCSI software and iSER targets are supported.

Multiple buffer overflow flaws were found in scsi-target-utils' tgtd daemon. A remote attacker could trigger these flaws by sending a carefully-crafted Internet Storage Name Service (iSNS) request, causing the tgtd daemon to crash. (CVE-2010-2221)

Red Hat would like to thank the Vulnerability Research Team at TELUS Security Labs and Fujita Tomonori for responsibly reporting these flaws.

All scsi-target-utils users should upgrade to this updated package, which contains a backported patch to correct these issues. All running scsi-target-utils services must be restarted for the update to take effect.

An updated perl-Archive-Tar package that fixes multiple 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. 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 Archive::Tar module provides a mechanism for Perl scripts to manipulate tar archive files.

Multiple directory traversal flaws were discovered in the Archive::Tar module. A specially crafted tar file could cause a Perl script, using the Archive::Tar module to extract the archive, to overwrite an arbitrary file writable by the user running the script.
(CVE-2007-4829)

This package upgrades the Archive::Tar module to version 1.39_01.
Refer to the Archive::Tar module's changes file, linked to in the References, for a full list of changes.

Users of perl-Archive-Tar are advised to upgrade to this updated package, which corrects these issues. All applications using the Archive::Tar module must be restarted for this update to take effect.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 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 kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* multiple flaws were found in the mmap and mremap implementations. A local user could use these flaws to cause a local denial of service or escalate their privileges. (CVE-2010-0291, Important)

* a NULL pointer dereference flaw was found in the Fast Userspace Mutexes (futexes) implementation. The unlock code path did not check if the futex value associated with pi_state->owner had been modified.
A local user could use this flaw to modify the futex value, possibly leading to a denial of service or privilege escalation when the pi_state->owner pointer is dereferenced. (CVE-2010-0622, Important)

* a NULL pointer dereference flaw was found in the Linux kernel Network File System (NFS) implementation. A local user on a system that has an NFS-mounted file system could use this flaw to cause a denial of service or escalate their privileges on that system.
(CVE-2010-1087, 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 flaw was found in the Linux kernel Transparent Inter-Process Communication protocol (TIPC) implementation. If a client application, on a local system where the tipc module is not yet in network mode, attempted to send a message to a remote TIPC node, it would dereference a NULL pointer on the local system, causing a kernel panic (denial of service). (CVE-2010-1187, Important)

* a buffer overflow flaw was found in the Linux kernel Global File System 2 (GFS2) implementation. In certain cases, a quota could be written past the end of a memory page, causing memory corruption, leaving the quota stored on disk in an invalid state. A user with write access to a GFS2 file system could trigger this flaw to cause a kernel crash (denial of service) or escalate their privileges on the GFS2 server. This issue can only be triggered if the GFS2 file system is mounted with the 'quota=on' or 'quota=account' mount option.
(CVE-2010-1436, 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 user could use this flaw to cause a kernel panic (denial of service) or escalate their privileges. (CVE-2010-1437, Important)

* a flaw was found in the link_path_walk() function in the Linux kernel. Using the file descriptor returned by the open() function with the O_NOFOLLOW flag on a subordinate NFS-mounted file system, could result in a NULL pointer dereference, causing a denial of service or privilege escalation. (CVE-2010-1088, Moderate)

* a missing permission check was found in the gfs2_set_flags() function in the Linux kernel GFS2 implementation. A local user could use this flaw to change certain file attributes of files, on a GFS2 file system, that they do not own. (CVE-2010-1641, Low)

Red Hat would like to thank 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; Mario Mikocevic for responsibly reporting CVE-2010-1436; and Dan Rosenberg for responsibly reporting CVE-2010-1641.

This update also fixes several bugs. Documentation for these bug fixes will be available shortly from http://www.redhat.com/docs/en-US/errata/RHSA-2010-0504/Kernel_Security
_Update/ index.html

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 firefox packages that address several security issues, fix bugs, add numerous enhancements, and upgrade Firefox to version 3.6.4, are now available for Red Hat Enterprise Linux 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.

[Updated 25 June 2010] The original packages distributed with this erratum had a bug which could cause unintended dependencies to be installed when upgrading. We have updated the packages to correct this bug.

Mozilla Firefox is an open source web browser.

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-2010-1121, CVE-2010-1200, CVE-2010-1202, CVE-2010-1203)

A flaw was found in the way browser plug-ins interact. It was possible for a plug-in to reference the freed memory from a different plug-in, resulting in the execution of arbitrary code with the privileges of the user running Firefox. (CVE-2010-1198)

Several integer overflow 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-2010-1196, CVE-2010-1199)

A focus stealing flaw was found in the way Firefox handled focus changes. A malicious website could use this flaw to steal sensitive data from a user, such as usernames and passwords. (CVE-2010-1125)

A flaw was found in the way Firefox handled the 'Content-Disposition:
attachment' HTTP header when the 'Content-Type: multipart' HTTP header was also present. A website that allows arbitrary uploads and relies on the 'Content-Disposition: attachment' HTTP header to prevent content from being displayed inline, could be used by an attacker to serve malicious content to users. (CVE-2010-1197)

A flaw was found in the Firefox Math.random() function. This function could be used to identify a browsing session and track a user across different websites. (CVE-2008-5913)

A flaw was found in the Firefox XML document loading security checks.
Certain security checks were not being called when an XML document was loaded. This could possibly be leveraged later by an attacker to load certain resources that violate the security policies of the browser or its add-ons. Note that this issue cannot be exploited by only loading an XML document. (CVE-2010-0182)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.4. You can find a link to the Mozilla advisories in the References section of this erratum.

This erratum upgrades Firefox from version 3.0.19 to version 3.6.4.
Due to the requirements of Firefox 3.6.4, this erratum also provides a number of other updated packages, including esc, totem, and yelp.

This erratum also contains multiple bug fixes and numerous enhancements. Space precludes documenting these changes in this advisory. For details concerning these changes, refer to the Firefox Release Notes links in the References section of this erratum.

Important: Firefox 3.6.4 is not completely backwards-compatible with all Mozilla Add-ons and Firefox plug-ins that worked with Firefox 3.0.19. Firefox 3.6 checks compatibility on first-launch, and, depending on the individual configuration and the installed Add-ons and plug-ins, may disable said Add-ons and plug-ins, or attempt to check for updates and upgrade them. Add-ons and plug-ins may have to be manually updated.

All Firefox users should upgrade to these updated packages, which contain Firefox version 3.6.4. After installing the update, Firefox must be restarted for the changes to take effect.

Updated cups packages that fix three 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 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 'texttops' filter converts text files to PostScript.

A missing memory allocation failure check flaw, leading to a NULL pointer dereference, was found in the CUPS 'texttops' filter. An attacker could create a malicious text file that would cause 'texttops' to crash or, potentially, execute arbitrary code as the 'lp' user if the file was printed. (CVE-2010-0542)

A Cross-Site Request Forgery (CSRF) issue was found in the CUPS web interface. If a remote attacker could trick a user, who is logged into the CUPS web interface as an administrator, into visiting a specially crafted website, the attacker could reconfigure and disable CUPS, and gain access to print jobs and system files. (CVE-2010-0540)

Note: As a result of the fix for CVE-2010-0540, cookies must now be enabled in your web browser to use the CUPS web interface.

An uninitialized memory read issue was found in the CUPS web interface. If an attacker had access to the CUPS web interface, they could use a specially crafted URL to leverage this flaw to read a limited amount of memory from the cupsd process, possibly obtaining sensitive information. (CVE-2010-1748)

Red Hat would like to thank the Apple Product Security team for responsibly reporting these issues. Upstream acknowledges regenrecht as the original reporter of CVE-2010-0542; Adrian 'pagvac' Pastor of GNUCITIZEN and Tim Starling as the original reporters of CVE-2010-0540; and Luca Carettoni as the original reporter of CVE-2010-1748.

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 samba and samba3x packages that fix one security issue 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.

An input sanitization flaw was found in the way Samba parsed client data. A malicious client could send a specially crafted SMB packet to the Samba server, resulting in arbitrary code execution with the privileges of the Samba server (smbd). (CVE-2010-2063)

Red Hat would like to thank the Samba team for responsibly reporting this issue. Upstream acknowledges Jun Mao as the original reporter.

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

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 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 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 the presence of duplicated environment variables. A local user authorized to run commands using sudo could use this flaw to set additional values for the environment variables set by sudo, which could result in those values being used by the executed command instead of the values set by sudo. This could possibly lead to certain intended restrictions being bypassed, such as the secure_path setting. (CVE-2010-1646)

Red Hat would like to thank Anders Kaseorg and Evan Broder of Ksplice, Inc. for responsibly reporting this issue.

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

Updated openoffice.org 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.

[Updated 16 June 2010] The packages list in this erratum has been updated to include missing packages for the 'Red Hat Enterprise Linux Server - Optional Desktop Productivity Applications' channel. No changes have been made to the original packages.

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.

A flaw was found in the way OpenOffice.org enforced a macro security setting for macros, written in the Python scripting language, that were embedded in OpenOffice.org documents. If a user were tricked into opening a specially crafted OpenOffice.org document and previewed the macro directory structure, it could lead to Python macro execution even if macro execution was disabled. (CVE-2010-0395)

All users of OpenOffice.org are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For Red Hat Enterprise Linux 4, this erratum provides updated openoffice.org2 packages. For Red Hat Enterprise Linux 5, this erratum provides updated openoffice.org packages. All running instances of OpenOffice.org applications must be restarted for this update to take effect.

Updated perl 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 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. The Safe extension module allows users to compile and execute Perl code in restricted compartments. The File::Path module allows users to create and remove directory trees.

The Safe module did not properly restrict the code of implicitly called methods (such as DESTROY and AUTOLOAD) on implicitly blessed objects returned as a result of unsafe code evaluation. These methods could have been executed unrestricted by Safe when such objects were accessed or destroyed. A specially crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions. (CVE-2010-1168)

The Safe module did not properly restrict code compiled in a Safe compartment and executed out of the compartment via a subroutine reference returned as a result of unsafe code evaluation. A specially crafted Perl script executed inside of a Safe compartment could use this flaw to bypass intended Safe module restrictions, if the returned subroutine reference was called from outside of the compartment.
(CVE-2010-1447)

Multiple race conditions were found in the way the File::Path module's rmtree function removed directory trees. A malicious, local user with write access to a directory being removed by a victim, running a Perl script using rmtree, could cause the permissions of arbitrary files to be changed to world-writable and setuid, or delete arbitrary files via a symbolic link attack, if the victim had the privileges to change the permissions of the target files or to remove them. (CVE-2008-5302, CVE-2008-5303)

Red Hat would like to thank Tim Bunce for responsibly reporting the CVE-2010-1168 and CVE-2010-1447 issues. Upstream acknowledges Nick Cleaton as the original reporter of CVE-2010-1168, and Tim Bunce and Rafael Garcia-Suarez as the original reporters of CVE-2010-1447.

These packages upgrade the Safe extension module to version 2.27.
Refer to the Safe module's Changes file, linked to in the References, for a full list of changes.

Users of perl are advised to upgrade to these updated packages, which correct these issues. All applications using the Safe or File::Path modules must be restarted for this update to take effect.

Updated java-1.6.0-openjdk packages that fix several 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 6 Java Runtime Environment and the OpenJDK 6 Software Development Kit. The Java Runtime Environment (JRE) contains the software and tools that users need to run applications written using the Java programming language.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handle session renegotiation.
A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials.
(CVE-2009-3555)

This update disables renegotiation in the Java Secure Socket Extension (JSSE) component. Unsafe renegotiation can be re-enabled using the sun.security.ssl.allowUnsafeRenegotiation property. Refer to the following Knowledgebase article for details:
http://kbase.redhat.com/faq/docs/DOC-20491

A number of flaws have been fixed in the Java Virtual Machine (JVM) and in various Java class implementations. These flaws could allow an unsigned applet or application to bypass intended access restrictions.
(CVE-2010-0082, CVE-2010-0084, CVE-2010-0085, CVE-2010-0088, CVE-2010-0094)

An untrusted applet could access clipboard information if a drag operation was performed over that applet's canvas. This could lead to an information leak. (CVE-2010-0091)

The rawIndex operation incorrectly handled large values, causing the corruption of internal memory structures, resulting in an untrusted applet or application crashing. (CVE-2010-0092)

The System.arraycopy operation incorrectly handled large index values, potentially causing array corruption in an untrusted applet or application. (CVE-2010-0093)

Subclasses of InetAddress may incorrectly interpret network addresses, allowing an untrusted applet or application to bypass network access restrictions. (CVE-2010-0095)

In certain cases, type assignments could result in 'non-exact' interface types. This could be used to bypass type-safety restrictions. (CVE-2010-0845)

A buffer overflow flaw in LittleCMS (embedded in OpenJDK) could cause an untrusted applet or application using color profiles from untrusted sources to crash. (CVE-2010-0838)

An input validation flaw was found in the JRE unpack200 functionality.
An untrusted applet or application could use this flaw to elevate its privileges. (CVE-2010-0837)

Deferred calls to trusted applet methods could be granted incorrect permissions, allowing an untrusted applet or application to extend its privileges. (CVE-2010-0840)

A missing input validation flaw in the JRE could allow an attacker to crash an untrusted applet or application. (CVE-2010-0848)

A flaw in Java2D could allow an attacker to execute arbitrary code with the privileges of a user running an untrusted applet or application that uses Java2D. (CVE-2010-0847)

Note: The flaws concerning applets in this advisory, CVE-2010-0082, CVE-2010-0084, CVE-2010-0085, CVE-2010-0088, CVE-2010-0091, CVE-2010-0092, CVE-2010-0093, CVE-2010-0094, CVE-2010-0095, CVE-2010-0837, CVE-2010-0838, CVE-2010-0840, CVE-2010-0847, and CVE-2010-0848, can only be triggered in java-1.6.0-openjdk by calling the 'appletviewer' application.

This update also provides three defense in depth patches. (BZ#575745, BZ#575861, BZ#575789)

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 mysql 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.

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

A buffer overflow flaw was found in the way MySQL handled the parameters of the MySQL COM_FIELD_LIST network protocol command (this command is sent when a client uses the MySQL mysql_list_fields() client library function). An authenticated database user could send a request with an excessively long table name to cause a temporary denial of service (mysqld crash) or, potentially, execute arbitrary code with the privileges of the database server. (CVE-2010-1850)

A directory traversal flaw was found in the way MySQL handled the parameters of the MySQL COM_FIELD_LIST network protocol command. An authenticated database user could use this flaw to obtain descriptions of the fields of an arbitrary table using a request with a specially crafted table name. (CVE-2010-1848)

A flaw was discovered in the way MySQL handled symbolic links to tables created using the DATA DIRECTORY and INDEX DIRECTORY directives in CREATE TABLE statements. An attacker with CREATE and DROP table privileges, and shell access to the database server, could use this flaw to remove data and index files of tables created by other database users using the MyISAM storage engine. (CVE-2010-1626)

All MySQL users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues. After installing this update, the MySQL server daemon (mysqld) will be restarted automatically.

Updated postgresql84 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 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.

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, and are installed in trusted mode by default. In trusted mode, certain operations, such as operating system level access, are restricted.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Perl. If the PL/Perl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Perl script could use this flaw to bypass intended PL/Perl trusted mode restrictions, allowing them to run arbitrary Perl scripts with the privileges of the database server.
(CVE-2010-1169)

Red Hat would like to thank Tim Bunce for responsibly reporting the CVE-2010-1169 flaw.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Tcl. If the PL/Tcl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Tcl script could use this flaw to bypass intended PL/Tcl trusted mode restrictions, allowing them to run arbitrary Tcl scripts with the privileges of the database server.
(CVE-2010-1170)

These packages upgrade PostgreSQL to version 8.4.4. Refer to the PostgreSQL Release Notes for a list of changes :

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

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

Updated postgresql 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 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.

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, and are installed in trusted mode by default. In trusted mode, certain operations, such as operating system level access, are restricted.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Perl. If the PL/Perl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Perl script could use this flaw to bypass intended PL/Perl trusted mode restrictions, allowing them to run arbitrary Perl scripts with the privileges of the database server.
(CVE-2010-1169)

Red Hat would like to thank Tim Bunce for responsibly reporting the CVE-2010-1169 flaw.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Tcl. If the PL/Tcl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Tcl script could use this flaw to bypass intended PL/Tcl trusted mode restrictions, allowing them to run arbitrary Tcl scripts with the privileges of the database server.
(CVE-2010-1170)

A buffer overflow flaw was found in the way PostgreSQL retrieved a substring from the bit string for BIT() and BIT VARYING() SQL data types. An authenticated database user running a specially crafted SQL query could use this flaw to cause a temporary denial of service (postgres daemon crash) or, potentially, execute arbitrary code with the privileges of the database server. (CVE-2010-0442)

An integer overflow flaw was found in the way PostgreSQL used to calculate the size of the hash table for joined relations. An authenticated database user could create a specially crafted SQL query which could cause a temporary denial of service (postgres daemon crash) or, potentially, execute arbitrary code with the privileges of the database server. (CVE-2010-0733)

PostgreSQL improperly protected session-local state during the execution of an index function by a database superuser during the database maintenance operations. An authenticated database user could use this flaw to elevate their privileges via specially crafted index functions. (CVE-2009-4136)

These packages upgrade PostgreSQL to version 8.1.21. Refer to the PostgreSQL Release Notes for a list of changes :

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

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

Updated tetex 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 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.

teTeX is an implementation of TeX. TeX takes a text file and a set of formatting commands as input, and creates a typesetter-independent DeVice Independent (DVI) file as output.

Multiple integer overflow flaws were found in the way teTeX processed special commands when converting DVI files into PostScript. An attacker could create a malicious DVI file that would cause the dvips executable to crash or, potentially, execute arbitrary code.
(CVE-2010-0739, CVE-2010-1440)

Multiple array index errors were found in the way teTeX converted DVI files into the Portable Network Graphics (PNG) format. An attacker could create a malicious DVI file that would cause the dvipng executable to crash. (CVE-2010-0829)

teTeX embeds a copy of Xpdf, an open source Portable Document Format (PDF) file viewer, to allow adding images in PDF format to the generated PDF documents. The following issues affect Xpdf code :

Multiple integer overflow flaws were found in Xpdf's JBIG2 decoder. If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2009-0147, CVE-2009-1179)

Multiple integer overflow flaws were found in Xpdf. If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2009-0791, CVE-2009-3608, CVE-2009-3609)

A heap-based buffer overflow flaw was found in Xpdf's JBIG2 decoder.
If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2009-0195)

Multiple buffer overflow flaws were found in Xpdf's JBIG2 decoder. If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2009-0146, CVE-2009-1182)

Multiple flaws were found in Xpdf's JBIG2 decoder that could lead to the freeing of arbitrary memory. If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2009-0166, CVE-2009-1180)

Multiple input validation flaws were found in Xpdf's JBIG2 decoder. If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2009-0800)

Multiple denial of service flaws were found in Xpdf's JBIG2 decoder.
If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash.
(CVE-2009-0799, CVE-2009-1181, CVE-2009-1183)

Red Hat would like to thank Braden Thomas and Drew Yao of the Apple Product Security team, Will Dormann of the CERT/CC, Alin Rad Pop of Secunia Research, and Chris Rohlf, for responsibly reporting the Xpdf flaws.

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

Updated kernel packages that fix multiple security issues and several 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.

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 Unidirectional Lightweight Encapsulation (ULE) implementation. A remote attacker could send a specially crafted ISO MPEG-2 Transport Stream (TS) frame to a target system, resulting in an infinite loop (denial of service). (CVE-2010-1086, Important)

* on AMD64 systems, it was discovered that the kernel did not ensure the ELF interpreter was available before making a call to the SET_PERSONALITY macro. A local attacker could use this flaw to cause a denial of service by running a 32-bit application that attempts to execute a 64-bit application. (CVE-2010-0307, Moderate)

* a flaw was found in the kernel connector implementation. A local, unprivileged user could trigger this flaw by sending an arbitrary number of notification requests using specially crafted netlink messages, resulting in a denial of service. (CVE-2010-0410, Moderate)

* a flaw was found in the Memory-mapped I/O (MMIO) instruction decoder in the Xen hypervisor implementation. An unprivileged guest user could use this flaw to trick the hypervisor into emulating a certain instruction, which could crash the guest (denial of service).
(CVE-2010-0730, Moderate)

* a divide-by-zero flaw was found in the azx_position_ok() function in the driver for Intel High Definition Audio, snd-hda-intel. A local, unprivileged user could trigger this flaw to cause a kernel crash (denial of service). (CVE-2010-1085, Moderate)

This update also fixes the following bugs :

* in some cases, booting a system with the 'iommu=on' kernel parameter resulted in a Xen hypervisor panic. (BZ#580199)

* the fnic driver flushed the Rx queue instead of the Tx queue after fabric login. This caused crashes in some cases. (BZ#580829)

* 'kernel unaligned access' warnings were logged to the dmesg log on some systems. (BZ#580832)

* the 'Northbridge Error, node 1, core: -1 K8 ECC error' error occurred on some systems using the amd64_edac driver. (BZ#580836)

* in rare circumstances, when using kdump and booting a kernel with 'crashkernel=128M@16M', the kdump kernel did not boot after a crash.
(BZ#580838)

* TLB page table entry flushing was done incorrectly on IBM System z, possibly causing crashes, subtle data inconsistency, or other issues.
(BZ#580839)

* iSCSI failover times were slower than in Red Hat Enterprise Linux 5.3. (BZ#580840)

* fixed floating point state corruption after signal. (BZ#580841)

* in certain circumstances, under heavy load, certain network interface cards using the bnx2 driver and configured to use MSI-X, could stop processing interrupts and then network connectivity would cease. (BZ#587799)

* cnic parts resets could cause a deadlock when the bnx2 device was enslaved in a bonding device and that device had an associated VLAN.
(BZ#581148)

* some BIOS implementations initialized interrupt remapping hardware in a way the Xen hypervisor implementation did not expect. This could have caused a system hang during boot. (BZ#581150)

* AMD Magny-Cours systems panicked when booting a 32-bit kernel.
(BZ#580846)

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 xorg-x11-server 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.

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

An incorrect calculation flaw was discovered in the X.Org Render extension. A malicious, authorized client could exploit this issue to crash the X.Org server or, potentially, execute arbitrary code with root privileges. (CVE-2010-1166)

Users of xorg-x11-server should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running X.Org server instances must be restarted for this update to take effect.

An updated scsi-target-utils 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 scsi-target-utils package contains the daemon and tools to set up and monitor SCSI targets. Currently, iSCSI software and iSER targets are supported.

A format string flaw was found in scsi-target-utils' tgtd daemon. A remote attacker could trigger this flaw by sending a carefully-crafted Internet Storage Name Service (iSNS) request, causing the tgtd daemon to crash. (CVE-2010-0743)

All scsi-target-utils users should upgrade to this updated package, which contains a backported patch to correct this issue. All running scsi-target-utils services must be restarted for the update to take effect.

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 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 sudo (superuser do) utility allows system administrators to give certain users the ability to run commands as root.

The RHBA-2010:0212 sudo update released as part of Red Hat Enterprise Linux 5.5 added the ability to change the value of the ignore_dot option in the '/etc/sudoers' configuration file. This ability introduced a regression in the upstream fix for CVE-2010-0426. In configurations where the ignore_dot option was set to off (the default is on for the Red Hat Enterprise Linux 5 sudo package), a local user authorized to use the sudoedit pseudo-command could possibly run arbitrary commands with the privileges of the users sudoedit was authorized to run as. (CVE-2010-1163)

Red Hat would like to thank Todd C. Miller, the upstream sudo maintainer, for responsibly reporting this issue. Upstream acknowledges Valerio Costamagna as the original reporter.

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

Updated nss_db 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.

The nss_db packages provide a set of C library extensions which allow Berkeley Database (Berkeley DB) databases to be used as a primary source of aliases, ethers, groups, hosts, networks, protocols, users, RPCs, services, and shadow passwords. These databases are used instead of or in addition to the flat files used by these tools by default.

It was discovered that nss_db did not specify a path to the directory to be used as the database environment for the Berkeley Database library, causing it to use the current working directory as the default. This could possibly allow a local attacker to obtain sensitive information. (CVE-2010-0826)

Users of nss_db are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Updated krb5 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 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.

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 use-after-free flaw was discovered in the MIT Kerberos administration daemon, kadmind. A remote, authenticated attacker could use this flaw to crash the kadmind daemon. Administrative privileges are not required to trigger this flaw, as any realm user can request information about their own principal from kadmind. (CVE-2010-0629)

This update also fixes the following bug :

* when a Kerberos client seeks tickets for use with a service, it must contact the Key Distribution Center (KDC) to obtain them. The client must also determine which realm the service belongs to and it typically does this with a combination of client configuration detail, DNS information and guesswork.

If the service belongs to a realm other than the client's, cross-realm authentication is required. Using a combination of client configuration and guesswork, the client determines the trust relationship sequence which forms the trusted path between the client's realm and the service's realm. This may include one or more intermediate realms.

Anticipating the KDC has better knowledge of extant trust relationships, the client then requests a ticket from the service's KDC, indicating it will accept guidance from the service's KDC by setting a special flag in the request. A KDC which recognizes the flag can, at its option, return a ticket-granting ticket for the next realm along the trust path the client should be following.

If the ticket-granting ticket returned by the service's KDC is for use with a realm the client has already determined was in the trusted path, the client accepts this as an optimization and continues. If, however, the ticket is for use in a realm the client is not expecting, the client responds incorrectly: it treats the case as an error rather than continuing along the path suggested by the service's KDC.

For this update, the krb5 1.7 modifications which allow the client to trust such KDCs to send them along the correct path, resulting in the client obtaining the tickets it originally desired, were backported to krb 1.6.1 (the version shipped with Red Hat Enterprise Linux 5.5).
(BZ#578540)

All krb5 users should upgrade to these updated packages, which contain backported patches to correct these issues. All running KDC services must be restarted for the update to take effect.

Updated postgresql 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 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.

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, and are installed in trusted mode by default. In trusted mode, certain operations, such as operating system level access, are restricted.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Perl. If the PL/Perl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Perl script could use this flaw to bypass intended PL/Perl trusted mode restrictions, allowing them to run arbitrary Perl scripts with the privileges of the database server.
(CVE-2010-1169)

Red Hat would like to thank Tim Bunce for responsibly reporting the CVE-2010-1169 flaw.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Tcl. If the PL/Tcl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Tcl script could use this flaw to bypass intended PL/Tcl trusted mode restrictions, allowing them to run arbitrary Tcl scripts with the privileges of the database server.
(CVE-2010-1170)

A buffer overflow flaw was found in the way PostgreSQL retrieved a substring from the bit string for BIT() and BIT VARYING() SQL data types. An authenticated database user running a specially crafted SQL query could use this flaw to cause a temporary denial of service (postgres daemon crash) or, potentially, execute arbitrary code with the privileges of the database server. (CVE-2010-0442)

An integer overflow flaw was found in the way PostgreSQL used to calculate the size of the hash table for joined relations. An authenticated database user could create a specially crafted SQL query which could cause a temporary denial of service (postgres daemon crash) or, potentially, execute arbitrary code with the privileges of the database server. (CVE-2010-0733)

PostgreSQL improperly protected session-local state during the execution of an index function by a database superuser during the database maintenance operations. An authenticated database user could use this flaw to elevate their privileges via specially crafted index functions. (CVE-2009-4136)

These packages upgrade PostgreSQL to version 7.4.29. Refer to the PostgreSQL Release Notes for a list of changes :

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

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

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

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.

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, and are installed in trusted mode by default. In trusted mode, certain operations, such as operating system level access, are restricted.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Perl. If the PL/Perl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Perl script could use this flaw to bypass intended PL/Perl trusted mode restrictions, allowing them to run arbitrary Perl scripts with the privileges of the database server.
(CVE-2010-1169)

Red Hat would like to thank Tim Bunce for responsibly reporting the CVE-2010-1169 flaw.

A flaw was found in the way PostgreSQL enforced permission checks on scripts written in PL/Tcl. If the PL/Tcl procedural language was registered on a particular database, an authenticated database user running a specially crafted PL/Tcl script could use this flaw to bypass intended PL/Tcl trusted mode restrictions, allowing them to run arbitrary Tcl scripts with the privileges of the database server.
(CVE-2010-1170)

A buffer overflow flaw was found in the way PostgreSQL retrieved a substring from the bit string for BIT() and BIT VARYING() SQL data types. An authenticated database user running a specially crafted SQL query could use this flaw to cause a temporary denial of service (postgres daemon crash) or, potentially, execute arbitrary code with the privileges of the database server. (CVE-2010-0442)

An integer overflow flaw was found in the way PostgreSQL used to calculate the size of the hash table for joined relations. An authenticated database user could create a specially crafted SQL query which could cause a temporary denial of service (postgres daemon crash) or, potentially, execute arbitrary code with the privileges of the database server. (CVE-2010-0733)

PostgreSQL improperly protected session-local state during the execution of an index function by a database superuser during the database maintenance operations. An authenticated database user could use this flaw to elevate their privileges via specially crafted index functions. (CVE-2009-4136)

All PostgreSQL users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. Running PostgreSQL instances must be restarted ('service rhdb restart') for this update to take effect.

Updated krb5 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.

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 discovered in the MIT Kerberos Generic Security Service Application Program Interface (GSS-API) library. A remote, authenticated attacker could use this flaw to crash any server application using the GSS-API authentication mechanism, by sending a specially crafted GSS-API token with a missing checksum field. (CVE-2010-1321)

Red Hat would like to thank the MIT Kerberos Team for responsibly reporting this issue. Upstream acknowledges Shawn Emery of Oracle as the original reporter.

All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect.

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

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.

teTeX is an implementation of TeX. TeX takes a text file and a set of formatting commands as input, and creates a typesetter-independent DeVice Independent (DVI) file as output.

A buffer overflow flaw was found in the way teTeX processed virtual font files when converting DVI files into PostScript. An attacker could create a malicious DVI file that would cause the dvips executable to crash or, potentially, execute arbitrary code.
(CVE-2010-0827)

Multiple integer overflow flaws were found in the way teTeX processed special commands when converting DVI files into PostScript. An attacker could create a malicious DVI file that would cause the dvips executable to crash or, potentially, execute arbitrary code.
(CVE-2010-0739, CVE-2010-1440)

A stack-based buffer overflow flaw was found in the way teTeX processed DVI files containing HyperTeX references with long titles, when converting them into PostScript. An attacker could create a malicious DVI file that would cause the dvips executable to crash.
(CVE-2007-5935)

teTeX embeds a copy of Xpdf, an open source Portable Document Format (PDF) file viewer, to allow adding images in PDF format to the generated PDF documents. The following issues affect Xpdf code :

Multiple integer overflow flaws were found in Xpdf. If a local user generated a PDF file from a TeX document, referencing a specially crafted PDF file, it would cause Xpdf to crash or, potentially, execute arbitrary code with the privileges of the user running pdflatex. (CVE-2009-0791, CVE-2009-3609)

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

ID	Name	Severity
48342	CentOS 3 : seamonkey (CESA-2010:0546)	high
48341	CentOS 3 : libtiff (CESA-2010:0520)	medium
48303	CentOS 5 : NetworkManager / dbus-glib (CESA-2010:0616)	low
48302	CentOS 5 : libvirt (CESA-2010:0615)	medium
48301	CentOS 5 : kernel (CESA-2010:0610)	critical
48269	CentOS 3 / 4 / 5 : freetype (CESA-2010:0607)	high
48268	CentOS 5 : gnupg2 (CESA-2010:0603)	medium
48267	CentOS 4 : firefox (CESA-2010:0558)	critical
48266	CentOS 4 : thunderbird (CESA-2010:0544)	critical
48265	CentOS 4 : firefox (CESA-2010:0500)	critical
48219	CentOS 5 : lftp (CESA-2010:0585)	high
48218	CentOS 5 : tomcat5 (CESA-2010:0580)	medium
48217	CentOS 4 / 5 : freetype (CESA-2010:0578)	medium
47903	CentOS 5 : lvm2-cluster (CESA-2010:0567)	medium
47867	CentOS 5 : w3m (CESA-2010:0565)	medium
47866	CentOS 3 / 4 : seamonkey (CESA-2010:0557)	critical
47865	CentOS 5 : firefox (CESA-2010:0556)	critical
47806	CentOS 4 / 5 : firefox (CESA-2010:0547)	high
47805	CentOS 5 : thunderbird (CESA-2010:0545)	critical
47790	CentOS 4 : openldap (CESA-2010:0543)	medium
47789	CentOS 5 : openldap (CESA-2010:0542)	medium
47788	CentOS 3 / 4 : seamonkey (CESA-2010:0499)	critical
47741	CentOS 3 / 4 / 5 : libpng / libpng10 (CESA-2010:0534)	high
47740	CentOS 5 : pcsc-lite (CESA-2010:0533)	medium
47739	CentOS 5 : avahi (CESA-2010:0528)	high
47738	CentOS 4 / 5 : libtiff (CESA-2010:0519)	medium
47737	CentOS 5 : scsi-target-utils (CESA-2010:0518)	medium
47703	CentOS 4 / 5 : perl-Archive-Tar (CESA-2010:0505)	medium
47702	CentOS 5 : kernel (CESA-2010:0504)	high
47129	CentOS 5 : firefox (CESA-2010:0501)	critical
47102	CentOS 3 / 4 / 5 : cups (CESA-2010:0490)	medium
47101	CentOS 3 / 4 / 5 : samba / samba3x (CESA-2010:0488)	high
47032	CentOS 5 : sudo (CESA-2010:0475)	medium
47031	CentOS 5 : openoffice.org (CESA-2010:0459)	high
46874	CentOS 5 : perl (CESA-2010:0458)	high
46873	CentOS 5 : java-1.6.0-openjdk (CESA-2010:0339)	high
46763	CentOS 5 : mysql (CESA-2010:0442)	medium
46762	CentOS 5 : postgresql84 (CESA-2010:0430)	high
46761	CentOS 5 : postgresql (CESA-2010:0429)	high
46760	CentOS 5 : tetex (CESA-2010:0400)	high
46759	CentOS 5 : kernel (CESA-2010:0398)	high
46758	CentOS 5 : xorg-x11-server (CESA-2010:0382)	high
46757	CentOS 5 : scsi-target-utils (CESA-2010:0362)	medium
46756	CentOS 5 : sudo (CESA-2010:0361)	medium
46755	CentOS 5 : nss_db (CESA-2010:0347)	low
46754	CentOS 5 : krb5 (CESA-2010:0343)	medium
46696	CentOS 4 : postgresql (CESA-2010:0428)	high
46695	CentOS 3 : postgresql (CESA-2010:0427)	high
46694	CentOS 3 / 4 / 5 : krb5 (CESA-2010:0423)	medium
46258	CentOS 3 : tetex (CESA-2010:0401)	medium

Detections

Analytics

CentOS Local Security Checks Family for Nessus

high

medium

low

medium

critical

high

medium

critical

critical

critical

high

medium

medium

medium

medium

critical

critical

high

critical

medium

medium

critical

high

medium

high

medium

medium

medium

high

critical

medium

high

medium

high

high

high

medium

high

high

high

high

high

medium

medium

low

medium

high

high

medium

medium