Updated ghostscript packages that fix a security issue are now available for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Ghostscript is a program for displaying PostScript files, or printing them to non-PostScript printers.

Chris Evans from the Google Security Team reported a stack-based buffer overflow flaw in Ghostscript's zseticcspace() function. An attacker could create a malicious PostScript file that would cause Ghostscript to execute arbitrary code when opened. (CVE-2008-0411)

These updated packages also fix a bug, which prevented the pxlmono printer driver from producing valid output on Red Hat Enterprise Linux 4.

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

Updated netpbm packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1, 3, and 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The netpbm package contains a library of functions for editing and converting between various graphics file formats, including .pbm (portable bitmaps), .pgm (portable graymaps), .pnm (portable anymaps), .ppm (portable pixmaps) and others. The package includes no interactive tools and is primarily used by other programs (eg CGI scripts that manage website images).

An input validation flaw was discovered in the GIF-to-PNM converter (giftopnm) shipped with the netpbm package. An attacker could create a carefully crafted GIF file which could cause giftopnm to crash or possibly execute arbitrary code as the user running giftopnm.
(CVE-2008-0554)

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

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

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

A flaw was found in the way CUPS handled the addition and removal of remote shared printers via IPP. A remote attacker could send malicious UDP IPP packets causing the CUPS daemon to attempt to dereference already freed memory and crash. (CVE-2008-0597)

A memory management flaw was found in the way CUPS handled the addition and removal of remote shared printers via IPP. When shared printer was removed, allocated memory was not properly freed, leading to a memory leak possibly causing CUPS daemon crash after exhausting available memory. (CVE-2008-0596)

These issues were found during the investigation of CVE-2008-0882, which did not affect Red Hat Enterprise Linux 4.

Note that the default configuration of CUPS on Red Hat Enterprise Linux 4 allow requests of this type only from the local subnet.

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

Updated cups packages that fixes two security issues and a bug are now available for Red Hat Enterprise Linux 3.

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

A flaw was found in the way CUPS handled the addition and removal of remote shared printers via IPP. A remote attacker could send malicious UDP IPP packets causing the CUPS daemon to attempt to dereference already freed memory and crash. (CVE-2008-0597)

A memory management flaw was found in the way CUPS handled the addition and removal of remote shared printers via IPP. When shared printer was removed, allocated memory was not properly freed, leading to a memory leak possibly causing CUPS daemon crash after exhausting available memory. (CVE-2008-0596)

These issues were found during the investigation of CVE-2008-0882, which did not affect Red Hat Enterprise Linux 3.

Note that the default configuration of CUPS on Red Hat Enterprise Linux 3 allow requests of this type only from the local subnet.

In addition, these updated cups packages fix a bug that occurred when using the CUPS polling daemon. Excessive debugging log information was saved to the error_log file regardless of the LogLevel setting, which filled up disk space rapidly.

All CUPS users are advised to upgrade to these updated packages, which contain backported patches to resolve this issue.

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

This update has been rated as having important security impact by the Red Hat Security Response Team.

The Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX(R) operating systems. The Internet Printing Protocol (IPP) is a standard network protocol for remote printing, as well as managing print jobs.

A flaw was found in the way CUPS handles the addition and removal of remote shared printers via IPP. A remote attacker could send malicious UDP IPP packets causing the CUPS daemon to crash. (CVE-2008-0882)

Note: the default configuration of CUPS on Red Hat Enterprise Linux 5 will only accept requests of this type from the local subnet. This issue did not affect the versions of CUPS as shipped with Red Hat Enterprise Linux 3 or 4.

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

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Tk is a graphical toolkit for the Tcl scripting language.

An input validation flaw was discovered in Tk's GIF image handling. A code-size value read from a GIF image was not properly validated before being used, leading to a buffer overflow. A specially crafted GIF file could use this to cause a crash or, potentially, execute code with the privileges of the application using the Tk graphical toolkit.
(CVE-2008-0553)

A buffer overflow flaw was discovered in Tk's animated GIF image handling. An animated GIF containing an initial image smaller than subsequent images could cause a crash or, potentially, execute code with the privileges of the application using the Tk library.
(CVE-2007-5137)

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

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

[Updated 22 February 2008] The packages in this errata were originally pushed to the wrong Red Hat Network channels and were not available to all users. We have updated this errata with the correct channels.

Tk is a graphical toolkit for the Tcl scripting language.

An input validation flaw was discovered in Tk's GIF image handling. A code-size value read from a GIF image was not properly validated before being used, leading to a buffer overflow. A specially crafted GIF file could use this to cause a crash or, potentially, execute code with the privileges of the application using the Tk graphical toolkit.
(CVE-2008-0553)

A buffer overflow flaw was discovered in Tk's animated GIF image handling. An animated GIF containing an initial image smaller than subsequent images could cause a crash or, potentially, execute code with the privileges of the application using the Tk library.
(CVE-2007-5378)

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

Updated tcltk packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1, and 3.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Tcl is a scripting language designed for embedding into other applications and for use with Tk, a widget set.

An input validation flaw was discovered in Tk's GIF image handling. A code-size value read from a GIF image was not properly validated before being used, leading to a buffer overflow. A specially crafted GIF file could use this to cause a crash or, potentially, execute code with the privileges of the application using the Tk graphical toolkit.
(CVE-2008-0553)

A buffer overflow flaw was discovered in Tk's animated GIF image handling. An animated GIF containing an initial image smaller than subsequent images could cause a crash or, potentially, execute code with the privileges of the application using the Tk library.
(CVE-2007-5378)

A flaw in the Tcl regular expression handling engine was discovered by Will Drewry. This flaw, first discovered in the Tcl regular expression engine used in the PostgreSQL database server, resulted in an infinite loop when processing certain regular expressions. (CVE-2007-4772)

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

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

OpenLDAP is an open source suite of Lightweight Directory Access Protocol (LDAP) applications and development tools. LDAP is a set of protocols for accessing directory services.

These updated openldap packages fix a flaw in the way the OpenLDAP slapd daemon handled modify and modrdn requests with NOOP control on objects stored in a Berkeley DB (BDB) storage backend. An authenticated attacker with permission to perform modify or modrdn operations on such LDAP objects could cause slapd to crash.
(CVE-2007-6698, CVE-2008-0658)

Users of openldap should upgrade to these updated packages, which contain a backported patch to correct this issue.

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

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

A flaw was found in vmsplice. An unprivileged local user could use this flaw to gain root privileges. (CVE-2008-0600)

Red Hat is aware that a public exploit for this issue is available.
This issue did not affect the Linux kernels distributed with Red Hat Enterprise Linux 2.1, 3, or 4.

Red Hat Enterprise Linux 5 users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.

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

This update has been rated as having critical security impact by the Red Hat Security Response Team.

[Updated 27th February 2008] The erratum text has been updated to include the details of additional issues that were fixed by these erratum packages, but which were not public at the time of release. No changes have been made to the packages.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A heap-based buffer overflow flaw was found in the way Thunderbird processed messages with external-body Multipurpose Internet Message Extensions (MIME) types. A HTML mail message containing malicious content could cause Thunderbird to execute arbitrary code as the user running Thunderbird. (CVE-2008-0304)

Several flaws were found in the way Thunderbird processed certain malformed HTML mail content. A HTML mail message containing malicious content could cause Thunderbird to crash, or potentially execute arbitrary code as the user running Thunderbird. (CVE-2008-0412, CVE-2008-0413, CVE-2008-0415, CVE-2008-0419)

Several flaws were found in the way Thunderbird displayed malformed HTML mail content. A HTML mail message containing specially crafted content could trick a user into surrendering sensitive information.
(CVE-2008-0420, CVE-2008-0591, CVE-2008-0593)

A flaw was found in the way Thunderbird handles certain chrome URLs.
If a user has certain extensions installed, it could allow a malicious HTML mail message to steal sensitive session data. Note: this flaw does not affect a default installation of Thunderbird. (CVE-2008-0418)

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

A flaw was found in the way Thunderbird saves certain text files. If a remote site offers a file of type 'plain/text', rather than 'text/plain', Thunderbird will not show future 'text/plain' content to the user, forcing them to save those files locally to view the content. (CVE-2008-0592)

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

Updated SeaMonkey packages that fix several security issues are now available for Red Hat Enterprise Linux 2.1, 3, and 4.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

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

Several flaws were found in the way SeaMonkey processed certain malformed web content. A webpage containing malicious content could cause SeaMonkey to crash, or potentially execute arbitrary code as the user running SeaMonkey. (CVE-2008-0412, CVE-2008-0413, CVE-2008-0415, CVE-2008-0419)

Several flaws were found in the way SeaMonkey displayed malformed web content. A webpage containing specially crafted content could trick a user into surrendering sensitive information. (CVE-2008-0591, CVE-2008-0593)

A flaw was found in the way SeaMonkey stored password data. If a user saves login information for a malicious website, it could be possible to corrupt the password database, preventing the user from properly accessing saved password data. (CVE-2008-0417)

A flaw was found in the way SeaMonkey handles certain chrome URLs. If a user has certain extensions installed, it could allow a malicious website to steal sensitive session data. Note: this flaw does not affect a default installation of SeaMonkey. (CVE-2008-0418)

A flaw was found in the way SeaMonkey saves certain text files. If a website offers a file of type 'plain/text', rather than 'text/plain', SeaMonkey will not show future 'text/plain' content to the user in the browser, forcing them to save those files locally to view the content.
(CVE-2008-0592)

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

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

This update has been rated as having critical security impact by the Red Hat Security Response Team.

Mozilla Firefox is an open source Web browser.

Several flaws were found in the way Firefox processed certain malformed web content. A webpage containing malicious content could cause Firefox to crash, or potentially execute arbitrary code as the user running Firefox. (CVE-2008-0412, CVE-2008-0413, CVE-2008-0415, CVE-2008-0419)

Several flaws were found in the way Firefox displayed malformed web content. A webpage containing specially crafted content could trick a user into surrendering sensitive information. (CVE-2008-0591, CVE-2008-0593)

A flaw was found in the way Firefox stored password data. If a user saves login information for a malicious website, it could be possible to corrupt the password database, preventing the user from properly accessing saved password data. (CVE-2008-0417)

A flaw was found in the way Firefox handles certain chrome URLs. If a user has certain extensions installed, it could allow a malicious website to steal sensitive session data. Note: this flaw does not affect a default installation of Firefox. (CVE-2008-0418)

A flaw was found in the way Firefox saves certain text files. If a website offers a file of type 'plain/text', rather than 'text/plain', Firefox will not show future 'text/plain' content to the user in the browser, forcing them to save those files locally to view the content.
(CVE-2008-0592)

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

Updated kernel packages that fix several security issues and a bug in the Red Hat Enterprise Linux 4 kernel are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

These updated kernel packages fix the following security issues :

A flaw was found in the virtual filesystem (VFS). A local unprivileged user could truncate directories to which they had write permission;
this could render the contents of the directory inaccessible.
(CVE-2008-0001, Important)

A flaw was found in the implementation of ptrace. A local unprivileged user could trigger this flaw and possibly cause a denial of service (system hang). (CVE-2007-5500, Important)

A flaw was found in the way the Red Hat Enterprise Linux 4 kernel handled page faults when a CPU used the NUMA method for accessing memory on Itanium architectures. A local unprivileged user could trigger this flaw and cause a denial of service (system panic).
(CVE-2007-4130, Important)

A possible NULL pointer dereference was found in the chrp_show_cpuinfo function when using the PowerPC architecture. This may have allowed a local unprivileged user to cause a denial of service (crash).
(CVE-2007-6694, Moderate)

A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file. This could potentially grant unauthorized access to sensitive information. (CVE-2007-6206, Moderate)

Two buffer overflow flaws were found in the Linux kernel ISDN subsystem. A local unprivileged user could use these flaws to cause a denial of service. (CVE-2007-6063, CVE-2007-6151, Moderate)

As well, these updated packages fix the following bug :

* when moving volumes that contain multiple segments, and a mirror segment is not the first in the mapping table, running the 'pvmove /dev/[device] /dev/[device]' command caused a kernel panic. A 'kernel:
Unable to handle kernel paging request at virtual address [address]' error was logged by syslog.

Red Hat Enterprise Linux 4 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

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

Several flaws were found in Wireshark. Wireshark could crash or possibly execute arbitrary code as the user running Wireshark if it read a malformed packet off the network. (CVE-2007-6114, CVE-2007-6115, CVE-2007-6117)

Several denial of service bugs were found in Wireshark. Wireshark could crash or stop responding if it read a malformed packet off the network. (CVE-2007-3389, CVE-2007-3390, CVE-2007-3391, CVE-2007-3392, CVE-2007-3392, CVE-2007-3393, CVE-2007-6113, CVE-2007-6118, CVE-2007-6120, CVE-2007-6121, CVE-2007-6450, CVE-2007-6451)

As well, Wireshark switched from using net-snmp to libsmi, which is included in this errata.

Users of wireshark should upgrade to these updated packages, which contain Wireshark version 0.99.7, and resolve these issues.

Updated XFree86 packages that fix several security issues are now available for Red Hat Enterprise Linux 2.1 and 3.

This update has been rated as having important security impact by the Red Hat Security Response Team.

[Updated 18th January 2008] The original packages distributed with this errata had a bug which could cause some X applications to fail on 32-bit platforms. We have updated the packages to correct this bug.

XFree86 is an implementation of the X Window System, which provides the core functionality for the Linux graphical desktop.

Two integer overflow flaws were found in the XFree86 server's EVI and MIT-SHM modules. A malicious authorized client could exploit these issues to cause a denial of service (crash), or potentially execute arbitrary code with root privileges on the XFree86 server.
(CVE-2007-6429)

A heap based buffer overflow flaw was found in the way the XFree86 server handled malformed font files. A malicious local user could exploit this issue to potentially execute arbitrary code with the privileges of the XFree86 server. (CVE-2008-0006)

A memory corruption flaw was found in the XFree86 server's XInput extension. A malicious authorized client could exploit this issue to cause a denial of service (crash), or potentially execute arbitrary code with root privileges on the XFree86 server. (CVE-2007-6427)

An information disclosure flaw was found in the XFree86 server's TOG-CUP extension. A malicious authorized client could exploit this issue to cause a denial of service (crash), or potentially view arbitrary memory content within the XFree86 server's address space.
(CVE-2007-6428)

An integer and heap overflow flaw were found in the X.org font server, xfs. A user with the ability to connect to the font server could have been able to cause a denial of service (crash), or potentially execute arbitrary code with the permissions of the font server.
(CVE-2007-4568, CVE-2007-4990)

A flaw was found in the XFree86 server's XC-SECURITY extension, that could have allowed a local user to verify the existence of an arbitrary file, even in directories that are not normally accessible to that user. (CVE-2007-5958)

Users of XFree86 are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated Apache httpd packages that fix several security issues are now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Apache HTTP Server is a popular Web server.

A flaw was found in the mod_imap module. On sites where mod_imap was enabled and an imagemap file was publicly available, a cross-site scripting attack was possible. (CVE-2007-5000)

A flaw was found in the mod_autoindex module. On sites where directory listings are used, and the 'AddDefaultCharset' directive has been removed from the configuration, a cross-site scripting attack was possible against Web browsers which do not correctly derive the response character set following the rules in RFC 2616.
(CVE-2007-4465)

A flaw was found in the mod_status module. On sites where mod_status was enabled and the status pages were publicly available, a cross-site scripting attack was possible. (CVE-2007-6388)

A flaw was found in the mod_proxy_ftp module. On sites where mod_proxy_ftp was enabled and a forward proxy was configured, a cross-site scripting attack was possible against Web browsers which do not correctly derive the response character set following the rules in RFC 2616. (CVE-2008-0005)

Users of Apache httpd should upgrade to these updated packages, which contain backported patches to resolve these issues. Users should restart httpd after installing this update.

Updated Apache httpd packages that fix several security issues are now available for Red Hat Enterprise Linux 3.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Apache HTTP Server is a popular Web server.

A flaw was found in the mod_imap module. On sites where mod_imap was enabled and an imagemap file was publicly available, a cross-site scripting attack was possible. (CVE-2007-5000)

A flaw was found in the mod_autoindex module. On sites where directory listings are used, and the 'AddDefaultCharset' directive has been removed from the configuration, a cross-site scripting attack was possible against Web browsers which did not correctly derive the response character set following the rules in RFC 2616.
(CVE-2007-4465)

A flaw was found in the mod_proxy module. On sites where a reverse proxy is configured, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. On sites where a forward proxy is configured, an attacker could cause a similar crash if a user could be persuaded to visit a malicious site using the proxy. This could lead to a denial of service if using a threaded Multi-Processing Module. (CVE-2007-3847)

A flaw was found in the mod_status module. On sites where mod_status was enabled and the status pages were publicly available, a cross-site scripting attack was possible. (CVE-2007-6388)

A flaw was found in the mod_proxy_ftp module. On sites where mod_proxy_ftp was enabled and a forward proxy was configured, a cross-site scripting attack was possible against Web browsers which did not correctly derive the response character set following the rules in RFC 2616. (CVE-2008-0005)

Users of Apache httpd should upgrade to these updated packages, which contain backported patches to resolve these issues. Users should restart httpd after installing this update.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PostgreSQL is an advanced Object-Relational database management system (DBMS). The postgresql packages include the client programs and libraries needed to access a PostgreSQL DBMS server.

A privilege escalation flaw was discovered in PostgreSQL. An authenticated attacker could create an index function that would be executed with administrator privileges during database maintenance tasks, such as database vacuuming. (CVE-2007-6600)

A privilege escalation flaw was discovered in PostgreSQL's Database Link library (dblink). An authenticated attacker could use dblink to possibly escalate privileges on systems with 'trust' or 'ident' authentication configured. Please note that dblink functionality is not enabled by default, and can only by enabled by a database administrator on systems with the postgresql-contrib package installed. (CVE-2007-3278, CVE-2007-6601)

All postgresql users should upgrade to these updated packages, which include PostgreSQL 7.3.21 and resolve these issues.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PostgreSQL is an advanced Object-Relational database management system (DBMS). The postgresql packages include the client programs and libraries needed to access a PostgreSQL DBMS server.

Will Drewry discovered multiple flaws in PostgreSQL's regular expression engine. An authenticated attacker could use these flaws to cause a denial of service by causing the PostgreSQL server to crash, enter an infinite loop, or use extensive CPU and memory resources while processing queries containing specially crafted regular expressions. Applications that accept regular expressions from untrusted sources may expose this problem to unauthorized attackers.
(CVE-2007-4769, CVE-2007-4772, CVE-2007-6067)

A privilege escalation flaw was discovered in PostgreSQL. An authenticated attacker could create an index function that would be executed with administrator privileges during database maintenance tasks, such as database vacuuming. (CVE-2007-6600)

A privilege escalation flaw was discovered in PostgreSQL's Database Link library (dblink). An authenticated attacker could use dblink to possibly escalate privileges on systems with 'trust' or 'ident' authentication configured. Please note that dblink functionality is not enabled by default, and can only by enabled by a database administrator on systems with the postgresql-contrib package installed. (CVE-2007-3278, CVE-2007-6601)

All postgresql users should upgrade to these updated packages, which include PostgreSQL 7.4.19 and 8.1.11, and resolve these issues.

Updated libxml2 packages that fix a security issue are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The libxml2 packages provide a library that allows you to manipulate XML files. It includes support to read, modify, and write XML and HTML files.

A denial of service flaw was found in the way libxml2 processes certain content. If an application linked against libxml2 processes malformed XML content, it could cause the application to stop responding. (CVE-2007-6284)

Red Hat would like to thank the Google Security Team for responsibly disclosing this issue.

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

Updated tog-pegasus packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

The tog-pegasus packages provide OpenPegasus Web-Based Enterprise Management (WBEM) services. WBEM is a platform and resource independent DMTF standard that defines a common information model, and communication protocol for monitoring and controlling resources.

During a security audit, a stack-based buffer overflow flaw was found in the PAM authentication code in the OpenPegasus CIM management server. An unauthenticated remote user could trigger this flaw and potentially execute arbitrary code with root privileges.
(CVE-2008-0003)

Note that the tog-pegasus packages are not installed by default on Red Hat Enterprise Linux. The Red Hat Security Response Team believes that it would be hard to remotely exploit this issue to execute arbitrary code, due to the default SELinux targeted policy on Red Hat Enterprise Linux 4 and 5, and the SELinux memory protection tests enabled by default on Red Hat Enterprise Linux 5.

Users of tog-pegasus should upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing the updated packages the tog-pegasus service should be restarted.

Updated e2fsprogs packages that fix several security issues are now available for Red Hat Enterprise Linux.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The e2fsprogs packages contain a number of utilities for creating, checking, modifying, and correcting any inconsistencies in second and third extended (ext2/ext3) file systems.

Multiple integer overflow flaws were found in the way e2fsprogs processes file system content. If a victim opens a carefully crafted file system with a program using e2fsprogs, it may be possible to execute arbitrary code with the permissions of the victim. It may be possible to leverage this flaw in a virtualized environment to gain access to other virtualized hosts. (CVE-2007-5497)

Red Hat would like to thank Rafal Wojtczuk of McAfee Avert Research for responsibly disclosing these issues.

Users of e2fsprogs are advised to upgrade to these updated packages, which contain a backported patch to resolve these issues.

Updated autofs5 technology preview packages that fix a security issue are now available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The autofs utility controls the operation of the automount daemon, which automatically mounts file systems when you use them, and unmounts them when you are not using them. This can include network file systems and CD-ROMs. The autofs5 packages were made available as a technology preview in Red Hat Enterprise Linux 4.6.

There was a security issue with the default configuration of autofs version 5, whereby the entry for the '-hosts' map did not specify the 'nodev' mount option. A local user with control of a remote NFS server could create special device files on the remote file system, that if mounted using the default '-hosts' map, could allow the user to access important system devices. (CVE-2007-6285)

This issue is similar to CVE-2007-5964, which fixed a missing 'nosuid' mount option in autofs. Both the 'nodev' and 'nosuid' options should be enabled to prevent a possible compromise of machine integrity.

Due to the fact that autofs always mounted '-hosts' map entries 'dev' by default, autofs has now been altered to always use the 'nodev' option when mounting from the default '-hosts' map. The 'dev' option must be explicitly given in the master map entry to revert to the old behavior. This change affects only the '-hosts' map which corresponds to the '/net' entry in the default configuration.

All autofs5 users are advised to upgrade to these updated packages, which resolve this issue.

Red Hat would like to thank Tim Baum for reporting this issue.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The libexif packages contain the Exif library. Exif is an image file format specification that enables metadata tags to be added to existing JPEG, TIFF and RIFF files. The Exif library makes it possible to parse an Exif file and read this metadata.

An integer overflow flaw was found in the way libexif parses Exif image tags. If a victim opens a carefully crafted Exif image file, it could cause the application linked against libexif to execute arbitrary code, or crash. (CVE-2007-6352)

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

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2007-1157.

Updated kernel packages that fix various security issues and several bugs in the Red Hat Enterprise Linux 4 kernel are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

These updated packages fix the following security issues :

A flaw was found in the handling of IEEE 802.11 frames, which affected several wireless LAN modules. In certain situations, a remote attacker could trigger this flaw by sending a malicious packet over a wireless network, causing a denial of service (kernel crash). (CVE-2007-4997, Important)

A memory leak was found in the Red Hat Content Accelerator kernel patch. A local user could use this flaw to cause a denial of service (memory exhaustion). (CVE-2007-5494, Important)

Additionally, the following bugs were fixed :

* when running the 'ls -la' command on an NFSv4 mount point, incorrect file attributes, and outdated file size and timestamp information were returned. As well, symbolic links may have been displayed as actual files.

* a bug which caused the cmirror write path to appear deadlocked after a successful recovery, which may have caused syncing to hang, has been resolved.

* a kernel panic which occurred when manually configuring LCS interfaces on the IBM S/390 has been resolved.

* when running a 32-bit binary on a 64-bit system, it was possible to mmap page at address 0 without flag MAP_FIXED set. This has been resolved in these updated packages.

* the Non-Maskable Interrupt (NMI) Watchdog did not increment the NMI interrupt counter in '/proc/interrupts' on systems running an AMD Opteron CPU. This caused systems running NMI Watchdog to restart at regular intervals.

* a bug which caused the diskdump utility to run very slowly on devices using Fusion MPT has been resolved.

All users are advised to upgrade to these updated packages, which resolve these issues.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A cross-site scripting flaw was found in the way Thunderbird handled the jar: URI scheme. It may be possible for a malicious HTML mail message to leverage this flaw, and conduct a cross-site scripting attack against a user running Thunderbird. (CVE-2007-5947)

Several flaws were found in the way Thunderbird processed certain malformed HTML mail content. A HTML mail message containing malicious content could cause Thunderbird to crash, or potentially execute arbitrary code as the user running Thunderbird. (CVE-2007-5959)

A race condition existed when Thunderbird set the 'window.location' property when displaying HTML mail content. This flaw could allow a HTML mail message to set an arbitrary Referer header, which may lead to a Cross-site Request Forgery (CSRF) attack against websites that rely only on the Referer header for protection. (CVE-2007-5960)

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

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

This update has been rated as having important security impact by the Red Hat Security Response Team.

MySQL is a multi-user, multi-threaded SQL database server. MySQL is a client/server implementation consisting of a server daemon (mysqld), and many different client programs and libraries.

A flaw was found in a way MySQL handled symbolic links when database tables were created with explicit 'DATA' and 'INDEX DIRECTORY' options. An authenticated user could create a table that would overwrite tables in other databases, causing destruction of data or allowing the user to elevate privileges. (CVE-2007-5969)

A flaw was found in a way MySQL's InnoDB engine handled spatial indexes. An authenticated user could create a table with spatial indexes, which are not supported by the InnoDB engine, that would cause the mysql daemon to crash when used. This issue only causes a temporary denial of service, as the mysql daemon will be automatically restarted after the crash. (CVE-2007-5925)

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

Updated squid packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1, 3, 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects.

A flaw was found in the way squid stored HTTP headers for cached objects in system memory. An attacker could cause squid to use additional memory, and trigger high CPU usage when processing requests for certain cached objects, possibly leading to a denial of service.
(CVE-2007-6239)

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

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

This update has been rated as having critical security impact by the Red Hat Security Response Team.

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

A stack-based buffer overflow flaw was found in the way Samba authenticates remote users. A remote unauthenticated user could trigger this flaw to cause the Samba server to crash, or execute arbitrary code with the permissions of the Samba server.
(CVE-2007-6015)

Red Hat would like to thank Alin Rad Pop of Secunia Research for responsibly disclosing this issue.

This update also fixes a regression caused by the fix for CVE-2007-4572, which prevented some clients from being able to properly access shares.

Users of Samba are advised to upgrade to these updated packages, which contain a backported patch to resolve these issues.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Python is an interpreted, interactive, object-oriented programming language.

An integer overflow flaw was discovered in the way Python's pcre module handled certain regular expressions. If a Python application used the pcre module to compile and execute untrusted regular expressions, it may be possible to cause the application to crash, or allow arbitrary code execution with the privileges of the Python interpreter. (CVE-2006-7228)

A flaw was discovered in the strxfrm() function of Python's locale module. Strings generated by this function were not properly NULL-terminated. This may possibly cause disclosure of data stored in the memory of a Python application using this function.
(CVE-2007-2052)

Multiple integer overflow flaws were discovered in Python's imageop module. If an application written in Python used the imageop module to process untrusted images, it could cause the application to crash, enter an infinite loop, or possibly execute arbitrary code with the privileges of the Python interpreter. (CVE-2007-4965)

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

Updated kernel packages that fix several security issues and a bug in the Red Hat Enterprise Linux 3 kernel are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

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

A flaw was found in the handling of process death signals. This allowed a local user to send arbitrary signals to the suid-process executed by that user. A successful exploitation of this flaw depends on the structure of the suid-program and its signal handling.
(CVE-2007-3848, Important)

A flaw was found in the IPv4 forwarding base. This allowed a local user to cause a denial of service. (CVE-2007-2172, Important)

A flaw was found where a corrupted executable file could cause cross-region memory mappings on Itanium systems. This allowed a local user to cause a denial of service. (CVE-2006-4538, Moderate)

A flaw was found in the stack expansion when using the hugetlb kernel on PowerPC systems. This allowed a local user to cause a denial of service. (CVE-2007-3739, Moderate)

A flaw was found in the aacraid SCSI driver. This allowed a local user to make ioctl calls to the driver that should be restricted to privileged users. (CVE-2007-4308, Moderate)

As well, these updated packages fix the following bug :

* a bug in the TCP header prediction code may have caused 'TCP:
Treason uncloaked!' messages to be logged. In certain situations this may have lead to TCP connections hanging or aborting.

Red Hat Enterprise Linux 3 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated libpng packages that fix security issues are now available for Red Hat Enterprise Linux.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The libpng package contains a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files.

Several flaws were discovered in the way libpng handled various PNG image chunks. An attacker could create a carefully crafted PNG image file in such a way that it could cause an application linked with libpng to crash when the file was manipulated. (CVE-2007-5269)

Users should update to these updated packages which contain a backported patch to correct these issues.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the way in which Thunderbird processed certain malformed HTML mail content. An HTML mail message containing malicious content could cause Thunderbird to crash or potentially execute arbitrary code as the user running Thunderbird. JavaScript support is disabled by default in Thunderbird; these issues are not exploitable unless the user has enabled JavaScript. (CVE-2007-5338, CVE-2007-5339, CVE-2007-5340)

Several flaws were found in the way in which Thunderbird displayed malformed HTML mail content. An HTML mail message containing specially crafted content could potentially trick a user into surrendering sensitive information. (CVE-2007-1095, CVE-2007-3844, CVE-2007-3511, CVE-2007-5334)

A flaw was found in the Thunderbird sftp protocol handler. A malicious HTML mail message could access data from a remote sftp site, possibly stealing sensitive user data. (CVE-2007-5337)

A request-splitting flaw was found in the way in which Thunderbird generates a digest authentication request. If a user opened a specially crafted URL, it was possible to perform cross-site scripting attacks, web cache poisoning, or other, similar exploits.
(CVE-2007-2292)

Users of Thunderbird are advised to upgrade to these erratum packages, which contain backported patches that correct these issues.

Updated SeaMonkey packages that fix several security bugs are now available for Red Hat Enterprise Linux 2.1, 3, and 4.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

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

Several flaws were found in the way in which SeaMonkey processed certain malformed web content. A web page containing malicious content could cause SeaMonkey to crash or potentially execute arbitrary code as the user running SeaMonkey. (CVE-2007-5338, CVE-2007-5339, CVE-2007-5340)

Several flaws were found in the way in which SeaMonkey displayed malformed web content. A web page containing specially crafted content could potentially trick a user into surrendering sensitive information. (CVE-2007-1095, CVE-2007-3844, CVE-2007-3511, CVE-2007-5334)

A flaw was found in the SeaMonkey sftp protocol handler. A malicious web page could access data from a remote sftp site, possibly stealing sensitive user data. (CVE-2007-5337)

A request-splitting flaw was found in the way in which SeaMonkey generates a digest authentication request. If a user opened a specially crafted URL, it was possible to perform cross-site scripting attacks, web cache poisoning, or other, similar exploits.
(CVE-2007-2292)

Users of SeaMonkey are advised to upgrade to these erratum packages, which contain backported patches that correct these issues.

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

This update has been rated as having critical security impact by the Red Hat Security Response Team.

Mozilla Firefox is an open source Web browser.

Several flaws were found in the way in which Firefox processed certain malformed web content. A web page containing malicious content could cause Firefox to crash or potentially execute arbitrary code as the user running Firefox. (CVE-2007-5338, CVE-2007-5339, CVE-2007-5340)

Several flaws were found in the way in which Firefox displayed malformed web content. A web page containing specially crafted content could potentially trick a user into surrendering sensitive information. (CVE-2007-1095, CVE-2007-3844, CVE-2007-3511, CVE-2007-5334)

A flaw was found in the Firefox sftp protocol handler. A malicious web page could access data from a remote sftp site, possibly stealing sensitive user data. (CVE-2007-5337)

A request-splitting flaw was found in the way in which Firefox generates a digest authentication request. If a user opened a specially crafted URL, it was possible to perform cross-site scripting attacks, web cache poisoning, or other, similar exploits.
(CVE-2007-2292)

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

An updated flac package to correct a security issue is now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

FLAC is a Free Lossless Audio Codec. The flac package consists of a FLAC encoder and decoder in library form, a program to encode and decode FLAC files, a metadata editor for FLAC files and input plugins for various music players.

A security flaw was found in the way flac processed audio data. An attacker could create a carefully crafted FLAC audio file in such a way that it could cause an application linked with flac libraries to crash or execute arbitrary code when it was opened. (CVE-2007-4619)

Users of flac are advised to upgrade to this updated package, which contains a backported patch that resolves this issue.

Updated OpenSSL packages that correct security issues are now available for Red Hat Enterprise Linux 2.1 and 3.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

OpenSSL is a toolkit that implements Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.

A flaw was found in the SSL_get_shared_ciphers() utility function. An attacker could send a list of ciphers to an application that used this function and overrun a buffer with a single byte (CVE-2007-5135). Few applications make use of this vulnerable function and generally it is used only when applications are compiled for debugging.

A number of possible side-channel attacks were discovered affecting OpenSSL. A local attacker could possibly obtain RSA private keys being used on a system. In practice these attacks would be difficult to perform outside of a lab environment. This update contains backported patches designed to mitigate these issues. (CVE-2007-3108).

Users of OpenSSL should upgrade to these updated packages, which contain backported patches to resolve these issues.

Note: After installing this update, users are advised to either restart all services that use OpenSSL or restart their system.

Updated kdelibs packages that resolve several security flaws are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The kdelibs package provides libraries for the K Desktop Environment (KDE).

Two cross-site-scripting flaws were found in the way Konqueror processes certain HTML content. This could result in a malicious attacker presenting misleading content to an unsuspecting user.
(CVE-2007-0242, CVE-2007-0537)

A flaw was found in KDE JavaScript implementation. A web page containing malicious JavaScript code could cause Konqueror to crash.
(CVE-2007-1308)

A flaw was found in the way Konqueror handled certain FTP PASV commands. A malicious FTP server could use this flaw to perform a rudimentary port-scan of machines behind a user's firewall.
(CVE-2007-1564)

Two Konqueror address spoofing flaws have been discovered. It was possible for a malicious website to cause the Konqueror address bar to display information which could trick a user into believing they are at a different website than they actually are. (CVE-2007-3820, CVE-2007-4224)

Users of KDE should upgrade to these updated packages, which contain backported patches to correct these issues.

Updated kdebase packages that resolve several security flaws are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The kdebase packages provide the core applications for KDE, the K Desktop Environment. These core packages include Konqueror, the web browser and file manager.

These updated packages address the following vulnerabilities :

Kees Huijgen found a flaw in the way KDM handled logins when autologin and 'shutdown with password' were enabled. A local user would have been able to login via KDM as any user without requiring a password.
(CVE-2007-4569)

Two Konqueror address spoofing flaws were discovered. A malicious website could spoof the Konqueror address bar, tricking a victim into believing the page was from a different site. (CVE-2007-3820, CVE-2007-4224)

Users of KDE should upgrade to these updated packages, which contain backported patches to correct these issues.

An updated ELinks package that corrects a security vulnerability is now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

ELinks is a text mode Web browser used from the command line that supports rendering modern web pages.

An information disclosure flaw was found in the way ELinks passes https POST data to a proxy server. POST data sent via a proxy to an https site is not properly encrypted by ELinks, possibly allowing the disclosure of sensitive information. (CVE-2007-5034)

All users of Elinks are advised to upgrade to this updated package, which contains a backported patch that resolves this issue.

Updated kernel packages that fix a security issue in the Red Hat Enterprise Linux 3 kernel are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The Linux kernel handles the basic functions of the operating system.

A flaw was found in ia32 emulation affecting users running 64-bit versions of Red Hat Enterprise Linux on x86_64 architectures. A local user could use this flaw to gain elevated privileges. (CVE-2007-4573).

Red Hat would like to thank Wojciech Purczynski for reporting this issue.

Red Hat Enterprise Linux 3 users are advised to upgrade to these packages, which contain a backported patch to correct this issue.

Updated kernel packages that fix a security issue in the Red Hat Enterprise Linux 4 kernel are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The Linux kernel handles the basic functions of the operating system.

A flaw was found in the IA32 system call emulation provided on AMD64 and Intel 64 platforms. An improperly validated 64-bit value could be stored in the %RAX register, which could trigger an out-of-bounds system call table access. An untrusted local user could exploit this flaw to run code in the kernel (ie a root privilege escalation).
(CVE-2007-4573).

Red Hat would like to thank Wojciech Purczynski for reporting this issue.

Red Hat Enterprise Linux 4 users are advised to upgrade to these packages, which contain a backported patch to correct this issue.

Updated kernel packages that fix a security issue in the Red Hat Enterprise Linux 5 kernel are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The Linux kernel handles the basic functions of the operating system.

A flaw was found in the IA32 system call emulation provided on AMD64 and Intel 64 platforms. An improperly validated 64-bit value could be stored in the %RAX register, which could trigger an out-of-bounds system call table access. An untrusted local user could exploit this flaw to run code in the kernel (ie a root privilege escalation).
(CVE-2007-4573).

Red Hat would like to thank Wojciech Purczynski for reporting this issue.

Red Hat Enterprise Linux 5 users are advised to upgrade to these packages, which contain a backported patch to correct this issue.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

These updated packages address the following vulnerabilities :

Various integer overflow flaws were found in the PHP gd extension script that could be forced to resize images from an untrusted source, possibly allowing a remote attacker to execute arbitrary code as the apache user. (CVE-2007-3996)

An integer overflow flaw was found in the PHP chunk_split function. If a remote attacker was able to pass arbitrary data to the third argument of chunk_split they could possibly execute arbitrary code as the apache user. Note that it is unusual for a PHP script to use the chunk_split function with a user-supplied third argument.
(CVE-2007-2872)

A previous security update introduced a bug into PHP session cookie handling. This could allow an attacker to stop a victim from viewing a vulnerable website if the victim has first visited a malicious web page under the control of the attacker, and that page can set a cookie for the vulnerable website. (CVE-2007-4670)

A flaw was found in the PHP money_format function. If a remote attacker was able to pass arbitrary data to the money_format function this could possibly result in an information leak or denial of service. Note that it is unusual for a PHP script to pass user-supplied data to the money_format function. (CVE-2007-4658)

A flaw was found in the PHP wordwrap function. If a remote attacker was able to pass arbitrary data to the wordwrap function this could possibly result in a denial of service. (CVE-2007-3998)

A bug was found in PHP session cookie handling. This could allow an attacker to create a cross-site cookie insertion attack if a victim follows an untrusted carefully-crafted URL. (CVE-2007-3799)

An infinite-loop flaw was discovered in the PHP gd extension. A script that could be forced to process PNG images from an untrusted source could allow a remote attacker to cause a denial of service.
(CVE-2007-2756)

A flaw was found in the PHP 'ftp' extension. If a PHP script used this extension to provide access to a private FTP server, and passed untrusted script input directly to any function provided by this extension, a remote attacker would be able to send arbitrary FTP commands to the server. (CVE-2007-2509)

Users of PHP should upgrade to these updated packages, which contain backported patches to correct these issues.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The GIMP (GNU Image Manipulation Program) is an image composition and editing program.

Multiple integer overflow and input validation flaws were found in The GIMP's image loaders. An attacker could create a carefully crafted image file that could cause The GIMP to crash or possibly execute arbitrary code if the file was opened by a victim. (CVE-2006-4519, CVE-2007-2949, CVE-2007-3741)

Users of The GIMP should update to these erratum packages, which contain a backported fix to correct these issues.

An updated nfs-utils-lib package to correct a security flaw is now available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The nfs-utils-lib package contains support libraries that are needed by the commands and daemons of the nfs-utils package.

Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by nfs-utils-lib. A remote unauthenticated attacker who can access an application linked against nfs-utils-lib could trigger this flaw and cause the application to crash. On Red Hat Enterprise Linux 4 it is not possible to exploit this flaw to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE.
(CVE-2007-3999)

Users of nfs-utils-lib are advised to upgrade to this updated package, which contains a backported patch that resolves this issue.

Updated X.org packages that correct a flaw in X.Org's composite extension are now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

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.

A flaw was found in the way X.Org's composite extension handles 32 bit color depth windows while running in 16 bit color depth mode. If an X.org server has enabled the composite extension, it may be possible for a malicious authorized client to cause a denial of service (crash) or potentially execute arbitrary code with the privileges of the X.org server. (CVE-2007-4730)

Please note this flaw can only be triggered when using a compositing window manager. Red Hat Enterprise Linux 4 does not ship with a compositing window manager.

Users of X.org should upgrade to these updated packages, which contain a backported patch and are not vulnerable to these issues.

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

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

Various integer overflow flaws were found in the PHP gd extension. A script that could be forced to resize images from an untrusted source could possibly allow a remote attacker to execute arbitrary code as the apache user. (CVE-2007-3996)

An integer overflow flaw was found in the PHP chunk_split function. If a remote attacker was able to pass arbitrary data to the third argument of chunk_split they could possibly execute arbitrary code as the apache user. Note that it is unusual for a PHP script to use the chunk_script function with a user-supplied third argument.
(CVE-2007-2872)

A previous security update introduced a bug into PHP session cookie handling. This could allow an attacker to stop a victim from viewing a vulnerable website if the victim has first visited a malicious web page under the control of the attacker, and that page can set a cookie for the vulnerable website. (CVE-2007-4670)

A flaw was found in the PHP money_format function. If a remote attacker was able to pass arbitrary data to the money_format function this could possibly result in an information leak or denial of service. Note that is is unusual for a PHP script to pass user-supplied data to the money_format function. (CVE-2007-4658)

A flaw was found in the PHP wordwrap function. If a remote attacker was able to pass arbitrary data to the wordwrap function this could possibly result in a denial of service. (CVE-2007-3998)

A bug was found in PHP session cookie handling. This could allow an attacker to create a cross-site cookie insertion attack if a victim follows an untrusted carefully-crafted URL. (CVE-2007-3799)

An infinite-loop flaw was discovered in the PHP gd extension. A script that could be forced to process PNG images from an untrusted source could allow a remote attacker to cause a denial of service.
(CVE-2007-2756)

Users of PHP should upgrade to these updated packages, which contain backported patches to correct these issues.

ID	Name	Severity
31302	CentOS 3 / 4 / 5 : ghostscript (CESA-2008:0155)	medium
31301	CentOS 3 / 4 : netpbm (CESA-2008:0131)	medium
31293	CentOS 4 : cups (CESA-2008:0161)	medium
31168	CentOS 3 / 4 : cups (CESA-2008:0153)	medium
31142	CentOS 5 : cups (CESA-2008:0157)	critical
31141	CentOS 5 : tk (CESA-2008:0136)	medium
31140	CentOS 4 : tk (CESA-2008:0135)	medium
31139	CentOS 3 : tcltk (CESA-2008:0134)	medium
31138	CentOS 4 / 5 : openldap (CESA-2008:0110)	medium
31054	CentOS 5 : kernel (CESA-2008:0129)	high
30222	CentOS 4 / 5 : thunderbird (CESA-2008:0105)	high
30221	CentOS 3 / 4 : seamonkey (CESA-2008:0104)	high
30220	CentOS 4 / 5 : firefox (CESA-2008:0103)	high
30154	CentOS 4 : kernel (CESA-2008:0055)	high
30044	CentOS 3 : wireshark (CESA-2008:0059)	critical
30022	CentOS 3 : XFree86 (CESA-2008:0029)	high
29967	CentOS 4 : httpd (CESA-2008:0006)	medium
29966	CentOS 3 : httpd (CESA-2008:0005)	medium
29934	CentOS 3 : postgresql (CESA-2008:0039)	high
29933	CentOS 4 / 5 : postgresql (CESA-2008:0038)	high
29932	CentOS 3 / 4 / 5 : libxml2 (CESA-2008:0032)	medium
29931	CentOS 4 / 5 : tog-pegasus (CESA-2008:0002)	critical
29901	CentOS 3 / 4 / 5 : e2fsprogs (CESA-2008:0003)	medium
29754	CentOS 4 : autofs5 (CESA-2007:1177)	medium
29753	CentOS 4 : libexif (CESA-2007:1166)	medium
29752	CentOS 4 : mysql (CESA-2007:1222-001)	high
29751	CentOS 4 : kernel (CESA-2007:1104)	high
29750	CentOS 4 / 5 : thunderbird (CESA-2007:1083)	high
29731	CentOS 4 / 5 : mysql (CESA-2007:1155)	high
29730	CentOS 3 / 4 / 5 : squid (CESA-2007:1130)	medium
29256	CentOS 3 / 4 / 5 : samba (CESA-2007:1114)	high
29255	CentOS 3 / 4 : python (CESA-2007:1076)	medium
29190	CentOS 3 : kernel (CESA-2007:1049)	medium
27543	CentOS 3 / 4 / 5 : libpng (CESA-2007:0992)	medium
27542	CentOS 4 / 5 : thunderbird (CESA-2007:0981)	high
27541	CentOS 3 / 4 : seamonkey (CESA-2007:0980)	high
27540	CentOS 4 / 5 : firefox (CESA-2007:0979)	high
27539	CentOS 4 / 5 : flac (CESA-2007:0975)	high
27538	CentOS 3 : openssl (CESA-2007:0813)	medium
26974	CentOS 4 / 5 : kdelibs (CESA-2007:0909)	medium
26973	CentOS 4 / 5 : kdebase (CESA-2007:0905)	medium
26929	CentOS 4 / 5 : elinks (CESA-2007:0933)	medium
26207	CentOS 3 : kernel (CESA-2007:0938)	high
26206	CentOS 4 : kernel (CESA-2007:0937)	high
26205	CentOS 5 : kernel (CESA-2007:0936)	high
26204	CentOS 3 : php (CESA-2007:0889)	high
26203	CentOS 3 / 4 / 5 : gimp (CESA-2007:0513)	medium
26077	CentOS 4 : nfs-utils-lib (CESA-2007:0913)	critical
26076	CentOS 4 : xorg-x11 (CESA-2007:0898)	medium
26075	CentOS 4 / 5 : php (CESA-2007:0890)	high

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