Updated Zlib packages that fix a buffer overflow 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.

Zlib is a general-purpose lossless data compression library which is used by many different programs.

Tavis Ormandy discovered a buffer overflow affecting Zlib version 1.2 and above. An attacker could create a carefully crafted compressed stream that would cause an application to crash if the stream is opened by a user. As an example, an attacker could create a malicious PNG image file which would cause a web browser or mail viewer to crash if the image is viewed. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-2096 to this issue.

Please note that the versions of Zlib as shipped with Red Hat Enterprise Linux 2.1 and 3 are not vulnerable to this issue.

All users should update to these erratum packages which contain a patch from Mark Adler which corrects this issue.

Updated krb5 packages that fix multiple 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.

Kerberos is a networked authentication system that uses a trusted third party (a KDC) to authenticate clients and servers to each other.

A double-free flaw was found in the krb5_recvauth() routine which may be triggered by a remote unauthenticated attacker. Red Hat Enterprise Linux 4 contains checks within glibc that detect double-free flaws.
Therefore, on Red Hat Enterprise Linux 4 successful exploitation of this issue can only lead to a denial of service (KDC crash). The Common Vulnerabilities and Exposures project assigned the name CVE-2005-1689 to this issue.

Daniel Wachdorf discovered a single byte heap overflow in the krb5_unparse_name() function, part of krb5-libs. Sucessful exploitation of this flaw would lead to a denial of service (crash).
To trigger this flaw an attacker would need to have control of a kerberos realm that shares a cross-realm key with the target, making exploitation of this flaw unlikely. (CVE-2005-1175).

Daniel Wachdorf also discovered that in error conditions that may occur in response to correctly-formatted client requests, the Kerberos 5 KDC may attempt to free uninitialized memory. This could allow a remote attacker to cause a denial of service (KDC crash) (CVE-2005-1174).

Gael Delalleau discovered an information disclosure issue in the way some telnet clients handle messages from a server. An attacker could construct a malicious telnet server that collects information from the environment of any victim who connects to it using the Kerberos-aware telnet client (CVE-2005-0488).

The rcp protocol allows a server to instruct a client to write to arbitrary files outside of the current directory. This could potentially cause a security issue if a user uses the Kerberos-aware rcp to copy files from a malicious server (CVE-2004-0175).

All users of krb5 should update to these erratum packages, which contain backported patches to correct these issues. Red Hat would like to thank the MIT Kerberos Development Team for their responsible disclosure of these issues.

Updated ruby packages that fix an arbitrary command execution issue are now available.

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

Ruby is an interpreted scripting language for object-oriented programming.

A bug was found in the way Ruby launched an XMLRPC server. If an XMLRPC server is launched in a certain way, it becomes possible for a remote attacker to execute arbitrary commands within the XMLRPC server. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1992 to this issue.

Users of Ruby should update to these erratum packages, which contain a backported patch and are not vulnerable to this issue.

An updated HelixPlayer package that fixes a buffer overflow issue is now available.

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

HelixPlayer is a media player.

A buffer overflow bug was found in the way HelixPlayer processes SMIL files. An attacker could create a specially crafted SMIL file, which when combined with a malicious web server, could execute arbitrary code when opened by a user. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1766 to this issue.

All users of HelixPlayer are advised to upgrade to this updated package, which contains HelixPlayer version 10.0.5 and is not vulnerable to this issue.

Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 4. This is the second regular update.

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.

This is the second regular kernel update to Red Hat Enterprise Linux 4.

New features introduced in this update include: - Audit support - systemtap - kprobes, relayfs - Keyring support - iSCSI Initiator - iscsi_sfnet 4:0.1.11-1 - Device mapper multipath support - Intel dual core support - esb2 chipset support - Increased exec-shield coverage - Dirty page tracking for HA systems - Diskdump -- allow partial diskdumps and directing to swap

There were several bug fixes in various parts of the kernel. The ongoing effort to resolve these problems has resulted in a marked improvement in the reliability and scalability of Red Hat Enterprise Linux 4.

The following security bugs were fixed in this update, detailed below with corresponding CAN names available from the Common Vulnerabilities and Exposures project (cve.mitre.org) :

  - flaws in ptrace() syscall handling on 64-bit systems     that allowed a local user to cause a denial of service     (crash) (CVE-2005-0756, CVE-2005-1761, CVE-2005-1762,     CVE-2005-1763)

  - flaws in IPSEC network handling that allowed a local     user to cause a denial of service or potentially gain     privileges (CVE-2005-2456, CVE-2005-2555)

  - a flaw in sendmsg() syscall handling on 64-bit systems     that allowed a local user to cause a denial of service     or potentially gain privileges (CVE-2005-2490)

  - a flaw in sendmsg() syscall handling that allowed a     local user to cause a denial of service by altering     hardware state (CVE-2005-2492)

  - a flaw that prevented the topdown allocator from     allocating mmap areas all the way down to address zero     (CVE-2005-1265)

  - flaws dealing with keyrings that could cause a local     denial of service (CVE-2005-2098, CVE-2005-2099)

  - a flaw in the 4GB split patch that could allow a local     denial of service (CVE-2005-2100)

  - a xattr sharing bug in the ext2 and ext3 file systems     that could cause default ACLs to disappear     (CVE-2005-2801)

  - a flaw in the ipt_recent module on 64-bit architectures     which could allow a remote denial of service     (CVE-2005-2872)

The following device drivers have been upgraded to new versions :

qla2100 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2200 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2300 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2322 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2xxx
--------- 8.00.00b21-k to 8.01.00b5-rh2 qla6312 --------- 8.00.00b21-k to 8.01.00b5-rh2 megaraid_mbox --- 2.20.4.5 to 2.20.4.6 megaraid_mm
----- 2.20.2.5 to 2.20.2.6 lpfc ------------ 0:8.0.16.6_x2 to 0:8.0.16.17 cciss ----------- 2.6.4 to 2.6.6 ipw2100 --------- 1.0.3 to 1.1.0 tg3 ------------- 3.22-rh to 3.27-rh e100 ------------ 3.3.6-k2-NAPI to 3.4.8-k2-NAPI e1000 ----------- 5.6.10.1-k2-NAPI to 6.0.54-k2-NAPI 3c59x ----------- LK1.1.19 mptbase --------- 3.01.16 to 3.02.18 ixgb ------------ 1.0.66 to 1.0.95-k2-NAPI libata ---------- 1.10 to 1.11 sata_via -------- 1.0 to 1.1 sata_ahci ------- 1.00 to 1.01 sata_qstor ------ 0.04 sata_sil -------- 0.8 to 0.9 sata_svw
-------- 1.05 to 1.06 s390: crypto ---- 1.31 to 1.57 s390: zfcp ------ s390: CTC-MPC --- s390: dasd ------- s390: cio ------- s390: qeth
------

All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

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

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

Tcpdump is a command line tool for monitoring network traffic.

A denial of service bug was found in tcpdump during the processing of certain network packets. It is possible for an attacker to inject a carefully crafted packet onto the network, crashing a running tcpdump session. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1267 to this issue.

Users of tcpdump are advised to upgrade to these erratum packages, which contain backported security patches and are not vulnerable to these issues.

An updated sysreport package that fixes an information disclosure flaw is now available.

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

Sysreport is a utility that gathers information about a system's hardware and configuration. The information can then be used for diagnostic purposes and debugging.

When run by the root user, sysreport includes the contents of the /etc/sysconfig/rhn/up2date configuration file. If up2date has been configured to connect to a proxy server that requires an authentication password, that password is included in plain text in the system report. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-1760 to this issue.

Users of sysreport should update to this erratum package, which contains a patch that removes any proxy authentication passwords.

An updated spamassassin package that fixes a denial of service bug when parsing malformed messages is now available.

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

SpamAssassin provides a way to reduce unsolicited commercial email (SPAM) from incoming email.

A denial of service bug has been found in SpamAssassin. An attacker could construct a message in such a way that would cause SpamAssassin to consume CPU resources. If a number of these messages were sent it could lead to a denial of service, potentially preventing the delivery or filtering of email. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1266 to this issue.

SpamAssassin version 3.0.4 additionally solves a number of bugs including: - #156390 Spamassassin consumes too much memory during learning - #155423 URI blacklist spam bypass - #147464 Users may now disable subject rewriting - Smarter default Bayes scores - Numerous other bug fixes that improve spam filter accuracy and safety

For full details, please refer to the change details of 3.0.2, 3.0.3, and 3.0.4 in SpamAssassin's online documentation at the following address: http://wiki.apache.org/spamassassin/NextRelease

Users of SpamAssassin should update to this updated package, containing version 3.0.4 which is not vulnerable to this issue and resolves these bugs.

Updated firefox packages that fix various security bugs are now available.

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

Mozilla Firefox is an open source Web browser.

Several bugs were found in the way Firefox executes JavaScript code.
JavaScript executed from a web page should run with a restricted access level, preventing dangerous actions. It is possible that a malicious web page could execute JavaScript code with elevated privileges, allowing access to protected data and functions. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2005-1476, CVE-2005-1477, CVE-2005-1531, and CVE-2005-1532 to these issues.

Please note that the effects of CVE-2005-1477 are mitigated by the default setup, which allows only the Mozilla Update site to attempt installation of Firefox extensions. The Mozilla Update site has been modified to prevent this attack from working. If other URLs have been manually added to the whitelist, it may be possible to execute this attack.

Users of Firefox are advised to upgrade to this updated package which contains Firefox version 1.0.4 which is not vulnerable to these issues.

Updated GnuTLS packages that fix a remote denial of service vulnerability are 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 GnuTLS library implements Secure Sockets Layer (SSL v3) and Transport Layer Security (TLS v1) protocols.

A denial of service bug was found in the GnuTLS library versions prior to 1.0.25. A remote attacker could perform a carefully crafted TLS handshake against a service that uses the GnuTLS library causing the service to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1431 to this issue.

All users of GnuTLS are advised to upgrade to these updated packages and to restart any services which use GnuTLS.

Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 4. This is the first regular update.

[Updated 9 August 2005] The advisory text has been updated to show that this update also contained fixes for the security issues named CVE-2005-0209 and CVE-2005-0937. No changes have been made to the packages associated with this advisory.

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

This is the first regular kernel update to Red Hat Enterprise Linux 4.

A flaw affecting the auditing code was discovered. On Itanium architectures a local user could use this flaw to cause a denial of service (crash). This issue is rated as having important security impact (CVE-2005-0136).

A flaw was discovered in the servicing of a raw device ioctl. A local user who has access to raw devices could use this flaw to write to kernel memory and cause a denial of service or potentially gain privileges. This issue is rated as having moderate security impact (CVE-2005-1264).

A flaw in fragment forwarding was discovered that affected the netfilter subsystem for certain network interface cards. A remote attacker could send a set of bad fragments and cause a denial of service (system crash). Acenic and SunGEM network interfaces were the only adapters affected, which are in widespread use. (CVE-2005-0209)

A flaw in the futex functions was discovered affecting the Linux 2.6 kernel. A local user could use this flaw to cause a denial of service (system crash). (CVE-2005-0937)

New features introduced by this update include: - Fixed TCP BIC congestion handling. - Diskdump support for more controllers (megaraid, SATA) - Device mapper multipath support - AMD64 dual core support. - Intel ICH7 hardware support.

There were many bug fixes in various parts of the kernel. The ongoing effort to resolve these problems has resulted in a marked improvement in the reliability and scalability of Red Hat Enterprise Linux 4.

The following device drivers have been upgraded to new versions:
ata_piix -------- 1.03 bonding --------- 2.6.1 e1000 ----------- 5.6.10.1-k2-NAPI e100 ------------ 3.3.6-k2-NAPI ibmveth --------- 1.03 libata ---------- 1.02 to 1.10 lpfc ------------ 0:8.0.16 to 0:8.0.16.6_x2 megaraid_mbox --- 2.20.4.0 to 2.20.4.5 megaraid_mm ----- 2.20.2.0-rh1 to 2.20.2.5 sata_nv --------- 0.03 to 0.6 sata_promise
---- 1.00 to 1.01 sata_sil -------- 0.8 sata_sis -------- 0.5 sata_svw
-------- 1.05 sata_sx4 -------- 0.7 sata_via -------- 1.0 sata_vsc
-------- 1.0 tg3 ------------- 3.22-rh ipw2100 --------- 1.0.3 ipw2200
--------- 1.0.0

All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

Updated tcpdump packages that fix several security issues are now available.

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

This updated package also adds support for output files larger than 2 GB.

Tcpdump is a command-line tool for monitoring network traffic.

Several denial of service bugs were found in the way tcpdump processes certain network packets. It is possible for an attacker to inject a carefully crafted packet onto the network, crashing a running tcpdump session. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2005-1278, CVE-2005-1279, and CVE-2005-1280 to these issues.

The tcpdump utility can now write a file larger than 2 GB.

Users of tcpdump are advised to upgrade to these erratum packages, which contain backported security patches and are not vulnerable to these issues.

Updated cyrus-imapd packages that fix several buffer overflow security issues are now available.

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

The cyrus-imapd package contains the core of the Cyrus IMAP server.

Several buffer overflow bugs were found in cyrus-imapd. It is possible that an authenticated malicious user could cause the imap server to crash. Additionally, a peer news admin could potentially execute arbitrary code on the imap server when news is received using the fetchnews command. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0546 to this issue.

Users of cyrus-imapd are advised to upgrade to these updated packages, which contain cyrus-imapd version 2.2.12 to correct these issues.

Updated X.org packages that fix several integer overflows 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.

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 (GUIs) such as GNOME and KDE are designed upon.

Several integer overflow bugs were found in the way X.org parses pixmap images. It is possible for a user to gain elevated privileges by loading a specially crafted pixmap image. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-2495 to this issue.

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

Updated kdelibs packages that fix a flaw in kimgio input validation 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.

KDE is a graphical desktop environment for the X Window System.
Konqueror is the file manager for the K Desktop Environment.

A source code audit performed by the KDE security team discovered several vulnerabilities in the PCX and other image file format readers.

A buffer overflow was found in the kimgio library for KDE 3.4.0. An attacker could create a carefully crafted PCX image in such a way that it would cause kimgio to execute arbitrary code when processing the image. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1046 to this issue.

All users of kdelibs should upgrade to these updated packages, which contain a backported security patch to correct these issues.

An updated HelixPlayer package that fixes a buffer overflow issue is now available.

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

HelixPlayer is a media player.

A buffer overflow bug was found in the way HelixPlayer processes RAM files. An attacker could create a specially crafted RAM file which could execute arbitrary code when opened by a user. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0755 to this issue.

All users of HelixPlayer are advised to upgrade to this updated package, which contains HelixPlayer version 10.0.4 and is not vulnerable to this issue.

Updated mozilla packages that fix various security bugs are now available.

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

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

Vladimir V. Perepelitsa discovered a bug in the way Mozilla handles anonymous functions during regular expression string replacement. It is possible for a malicious web page to capture a random block of browser memory. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0989 to this issue.

Doron Rosenberg discovered a bug in the way Mozilla displays pop-up windows. If a user choses to open a pop-up window whose URL is malicious JavaScript, the script will be executed with elevated privileges. (CVE-2005-1153)

A bug was found in the way Mozilla handles the JavaScript global scope for a window. It is possible for a malicious web page to define a global variable known to be used by a different site, allowing malicious code to be executed in the context of the site.
(CVE-2005-1154)

Michael Krax discovered a bug in the way Mozilla handles favicon links. A malicious web page can programatically define a favicon link tag as JavaScript, executing arbitrary JavaScript with elevated privileges. (CVE-2005-1155)

Michael Krax discovered a bug in the way Mozilla installed search plugins. If a user chooses to install a search plugin from a malicious site, the new plugin could silently overwrite an existing plugin. This could allow the malicious plugin to execute arbitrary code and stealm sensitive information. (CVE-2005-1156 CVE-2005-1157)

A bug was found in the way Mozilla validated several XPInstall related JavaScript objects. A malicious web page could pass other objects to the XPInstall objects, resulting in the JavaScript interpreter jumping to arbitrary locations in memory. (CVE-2005-1159)

A bug was found in the way the Mozilla privileged UI code handled DOM nodes from the content window. A malicious web page could install malicious JavaScript code or steal data requiring a user to do commonplace actions such as clicking a link or opening the context menu. (CVE-2005-1160)

Users of Mozilla are advised to upgrade to this updated package which contains Mozilla version 1.7.7 to correct these issues.

Updated Mozilla packages that fix various security bugs are now available.

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

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

Several bugs were found with the way Mozilla displays the secure site icon. It is possible that a malicious website could display the secure site icon along with incorrect certificate information. (CVE-2005-0143 CVE-2005-0593)

A bug was found in the way Mozilla handles synthetic middle click events. It is possible for a malicious web page to steal the contents of a victims clipboard. (CVE-2005-0146)

Several bugs were found with the way Mozilla handles temporary files.
A local user could view sensitive temporary information or delete arbitrary files. (CVE-2005-0142 CVE-2005-0578)

A bug was found in the way Mozilla handles pop-up windows. It is possible for a malicious website to control the content in an unrelated site's pop-up window. (CVE-2004-1156)

A flaw was found in the way Mozilla displays international domain names. It is possible for an attacker to display a valid URL, tricking the user into thinking they are viewing a legitimate webpage when they are not. (CVE-2005-0233)

A bug was found in the way Mozilla processes XUL content. If a malicious web page can trick a user into dragging an object, it is possible to load malicious XUL content. (CVE-2005-0401)

A bug was found in the way Mozilla handles xsl:include and xsl:import directives. It is possible for a malicious website to import XSLT stylesheets from a domain behind a firewall, leaking information to an attacker. (CVE-2005-0588)

Several bugs were found in the way Mozilla displays alert dialogs. It is possible for a malicious webserver or website to trick a user into thinking the dialog window is being generated from a trusted site.
(CVE-2005-0586 CVE-2005-0591 CVE-2005-0585 CVE-2005-0590 CVE-2005-0584)

A bug was found in the Mozilla JavaScript security manager. If a user drags a malicious link to a tab, the JavaScript security manager is bypassed, which could result in remote code execution or information disclosure. (CVE-2005-0231)

A bug was found in the way Mozilla allows plug-ins to load privileged content into a frame. It is possible that a malicious webpage could trick a user into clicking in certain places to modify configuration settings or execute arbitrary code. (CVE-2005-0232 and CVE-2005-0527)

A bug was found in the way Mozilla handles anonymous functions during regular expression string replacement. It is possible for a malicious web page to capture a random block of browser memory. (CVE-2005-0989)

A bug was found in the way Mozilla displays pop-up windows. If a user choses to open a pop-up window whose URL is malicious JavaScript, the script will be executed with elevated privileges. (CVE-2005-1153)

A bug was found in the way Mozilla installed search plugins. If a user chooses to install a search plugin from a malicious site, the new plugin could silently overwrite an existing plugin. This could allow the malicious plugin to execute arbitrary code and stealm sensitive information. (CVE-2005-1156 CVE-2005-1157)

Several bugs were found in the Mozilla JavaScript engine. A malicious web page could leverage these issues to execute JavaScript with elevated privileges or steal sensitive information. (CVE-2005-1154 CVE-2005-1155 CVE-2005-1159 CVE-2005-1160)

Users of Mozilla are advised to upgrade to this updated package which contains Mozilla version 1.7.7 to correct these issues.

Updated firefox packages that fix various security bugs are now available.

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

Mozilla Firefox is an open source Web browser.

Vladimir V. Perepelitsa discovered a bug in the way Firefox handles anonymous functions during regular expression string replacement. It is possible for a malicious web page to capture a random block of browser memory. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0989 to this issue.

Omar Khan discovered a bug in the way Firefox processes the PLUGINSPAGE tag. It is possible for a malicious web page to trick a user into pressing the 'manual install' button for an unknown plugin leading to arbitrary JavaScript code execution. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0752 to this issue.

Doron Rosenberg discovered a bug in the way Firefox displays pop-up windows. If a user choses to open a pop-up window whose URL is malicious JavaScript, the script will be executed with elevated privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1153 to this issue.

A bug was found in the way Firefox handles the JavaScript global scope for a window. It is possible for a malicious web page to define a global variable known to be used by a different site, allowing malicious code to be executed in the context of the site. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1154 to this issue.

Michael Krax discovered a bug in the way Firefox handles favicon links. A malicious web page can programatically define a favicon link tag as JavaScript, executing arbitrary JavaScript with elevated privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1155 to this issue.

Michael Krax discovered a bug in the way Firefox installed search plugins. If a user chooses to install a search plugin from a malicious site, the new plugin could silently overwrite an existing plugin. This could allow the malicious plugin to execute arbitrary code and steal sensitive information. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2005-1156 and CVE-2005-1157 to these issues.

Kohei Yoshino discovered a bug in the way Firefox opens links in its sidebar. A malicious web page could construct a link in such a way that, when clicked on, could execute arbitrary JavaScript with elevated privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1158 to this issue.

A bug was found in the way Firefox validated several XPInstall related JavaScript objects. A malicious web page could pass other objects to the XPInstall objects, resulting in the JavaScript interpreter jumping to arbitrary locations in memory. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1159 to this issue.

A bug was found in the way the Firefox privileged UI code handled DOM nodes from the content window. A malicious web page could install malicious JavaScript code or steal data requiring a user to do commonplace actions such as clicking a link or opening the context menu. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-1160 to this issue.

Users of Firefox are advised to upgrade to this updated package which contains Firefox version 1.0.3 and is not vulnerable to these issues.

Updated kernel packages that fix several 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.

[Updated 9 August 2005] The advisory text has been updated to show that this update fixed the security issue named CVE-2005-0210 but not CVE-2005-0209. The issue CVE-2005-0209 was actually fixed by RHSA-2005:420. No changes have been made to the packages associated with this advisory.

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

A flaw in the fib_seq_start function was discovered. A local user could use this flaw to cause a denial of service (system crash) via /proc/net/route. (CVE-2005-1041)

A flaw in the tmpfs file system was discovered. A local user could use this flaw to cause a denial of service (system crash). (CVE-2005-0977)

An integer overflow flaw was found when writing to a sysfs file. A local user could use this flaw to overwrite kernel memory, causing a denial of service (system crash) or arbitrary code execution.
(CVE-2005-0867)

Keith Owens reported a flaw in the Itanium unw_unwind_to_user function. A local user could use this flaw to cause a denial of service (system crash) on Itanium architectures. (CVE-2005-0135)

A flaw in the NFS client O_DIRECT error case handling was discovered.
A local user could use this flaw to cause a denial of service (system crash). (CVE-2005-0207)

A small memory leak when defragmenting local packets was discovered that affected the Linux 2.6 kernel netfilter subsystem. A local user could send a large number of carefully crafted fragments leading to memory exhaustion (CVE-2005-0210)

A flaw was discovered in the Linux PPP driver. On systems allowing remote users to connect to a server using ppp, a remote client could cause a denial of service (system crash). (CVE-2005-0384)

A flaw was discovered in the ext2 file system code. When a new directory is created, the ext2 block written to disk is not initialized, which could lead to an information leak if a disk image is made available to unprivileged users. (CVE-2005-0400)

A flaw in fragment queuing was discovered that affected the Linux kernel netfilter subsystem. On systems configured to filter or process network packets (e.g. firewalling), a remote attacker could send a carefully crafted set of fragmented packets to a machine and cause a denial of service (system crash). In order to sucessfully exploit this flaw, the attacker would need to know or guess some aspects of the firewall ruleset on the target system. (CVE-2005-0449)

A number of flaws were found in the Linux 2.6 kernel. A local user could use these flaws to read kernel memory or cause a denial of service (crash). (CVE-2005-0529, CVE-2005-0530, CVE-2005-0531)

An integer overflow in sys_epoll_wait in eventpoll.c was discovered. A local user could use this flaw to overwrite low kernel memory. This memory is usually unused, not usually resulting in a security consequence. (CVE-2005-0736)

A flaw when freeing a pointer in load_elf_library was discovered. A local user could potentially use this flaw to cause a denial of service (crash). (CVE-2005-0749)

A flaw was discovered in the bluetooth driver system. On systems where the bluetooth modules are loaded, a local user could use this flaw to gain elevated (root) privileges. (CVE-2005-0750)

A race condition was discovered that affected the Radeon DRI driver. A local user who has DRI privileges on a Radeon graphics card may be able to use this flaw to gain root privileges. (CVE-2005-0767)

Multiple range checking flaws were discovered in the iso9660 file system handler. An attacker could create a malicious file system image which would cause a denial or service or potentially execute arbitrary code if mounted. (CVE-2005-0815)

A flaw was discovered when setting line discipline on a serial tty. A local user may be able to use this flaw to inject mouse movements or keystrokes when another user is logged in. (CVE-2005-0839)

Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

Please note that

Updated exim packages that fix a security issue in PCRE and a free space computation on large file system bug 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.

Exim is a mail transport agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

An integer overflow flaw was found in PCRE, a Perl-compatible regular expression library included within Exim. A local user could create a maliciously crafted regular expression in such as way that they could gain the privileges of the 'exim' user. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-2491 to this issue. These erratum packages change Exim to use the system PCRE library instead of the internal one.

These packages also fix a minor flaw where the Exim Monitor was incorrectly computing free space on very large file systems.

Users should upgrade to these erratum packages and also ensure they have updated the system PCRE library, for which erratum packages are available separately in RHSA-2005:761

Updated mysql-server packages that fix several vulnerabilities are now available.

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.

This update fixes several security risks in the MySQL server.

Stefano Di Paola discovered two bugs in the way MySQL handles user-defined functions. A user with the ability to create and execute a user defined function could potentially execute arbitrary code on the MySQL server. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2005-0709 and CVE-2005-0710 to these issues.

Stefano Di Paola also discovered a bug in the way MySQL creates temporary tables. A local user could create a specially crafted symlink which could result in the MySQL server overwriting a file which it has write access to. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-0711 to this issue.

All users of the MySQL server are advised to upgrade to these updated packages, which contain fixes for these issues.

An updated slocate package that fixes a denial of service and various bugs is available.

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

Slocate is a security-enhanced version of locate. Like locate, slocate searches through a central database (updated nightly) for files that match a given pattern. Slocate allows you to quickly find files anywhere on your system.

A bug was found in the way slocate scans the local filesystem. A carefully prepared directory structure could cause updatedb's file system scan to fail silently, resulting in an incomplete slocate database. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-2499 to this issue.

Additionally this update addresses the following issues :

  - File system type exclusions were processed only when     starting updatedb and did not reflect file systems     mounted while updatedb was running (for example,     automounted file systems.)

  - File system type exclusions were ignored for file     systems that were mounted to a path containing a     symbolic link.

  - Databases created by slocate were owned by the slocate     group even if they were created by regular users.

  - The default configuration excluded /mnt/floppy, but not     /media.

  - The default configuration did not exclude nfs4 file     systems.

Users of slocate are advised to upgrade to this updated package, which contains backported patches and is not affected by these issues.

A new xloadimage package that fixes bugs in handling malformed tiff and pbm/pnm/ppm images, and in handling metacharacters in filenames is now available.

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

The xloadimage utility displays images in an X Window System window, loads images into the root window, or writes images into a file.
Xloadimage supports many image types (including GIF, TIFF, JPEG, XPM, and XBM).

A flaw was discovered in xloadimage where filenames were not properly quoted when calling the gunzip command. An attacker could create a file with a carefully crafted filename so that it would execute arbitrary commands if opened by a victim. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0638 to this issue.

Another bug in xloadimage would cause it to crash if called with certain invalid TIFF, PNM, PBM, or PPM file names.

All users of xloadimage should upgrade to this erratum package which contains backported patches to correct these issues.

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

This security advisory 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.

The following security issues were fixed :

The Vicam USB driver did not use the copy_from_user function to access userspace, crossing security boundaries. (CVE-2004-0075)

The ext3 and jfs code did not properly initialize journal descriptor blocks. A privileged local user could read portions of kernel memory.
(CVE-2004-0177)

The terminal layer did not properly lock line discipline changes or pending IO. An unprivileged local user could read portions of kernel memory, or cause a denial of service (system crash). (CVE-2004-0814)

A race condition was discovered. Local users could use this flaw to read the environment variables of another process that is still spawning via /proc/.../cmdline. (CVE-2004-1058)

A flaw in the execve() syscall handling was discovered, allowing a local user to read setuid ELF binaries that should otherwise be protected by standard permissions. (CVE-2004-1073). Red Hat originally reported this as being fixed by RHSA-2004:549, but the associated fix was missing from that update.

Keith Owens reported a flaw in the Itanium unw_unwind_to_user() function. A local user could use this flaw to cause a denial of service (system crash) on the Itanium architecture. (CVE-2005-0135)

A missing Itanium syscall table entry could allow an unprivileged local user to cause a denial of service (system crash) on the Itanium architecture. (CVE-2005-0137)

A flaw affecting the OUTS instruction on the AMD64 and Intel EM64T architectures was discovered. A local user could use this flaw to access privileged IO ports. (CVE-2005-0204)

A flaw was discovered in the Linux PPP driver. On systems allowing remote users to connect to a server using ppp, a remote client could cause a denial of service (system crash). (CVE-2005-0384)

A flaw in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3 was discovered that left a pointer to a freed tty structure. A local user could potentially use this flaw to cause a denial of service (system crash) or possibly gain read or write access to ttys that should normally be prevented. (CVE-2005-0403)

A flaw in fragment queuing was discovered affecting the netfilter subsystem. On systems configured to filter or process network packets (for example those configured to do firewalling), a remote attacker could send a carefully crafted set of fragmented packets to a machine and cause a denial of service (system crash). In order to sucessfully exploit this flaw, the attacker would need to know (or guess) some aspects of the firewall ruleset in place on the target system to be able to craft the right fragmented packets. (CVE-2005-0449)

Missing validation of an epoll_wait() system call parameter could allow a local user to cause a denial of service (system crash) on the IBM S/390 and zSeries architectures. (CVE-2005-0736)

A flaw when freeing a pointer in load_elf_library was discovered. A local user could potentially use this flaw to cause a denial of service (system crash). (CVE-2005-0749)

A flaw was discovered in the bluetooth driver system. On system where the bluetooth modules are loaded, a local user could use this flaw to gain elevated (root) privileges. (CVE-2005-0750)

In addition to the security issues listed above, there was an important fix made to the handling of the msync() system call for a particular case in which the call could return without queuing modified mmap()'ed data for file system update. (BZ 147969)

Note: The kernel-unsupported package contains various drivers and modules that are unsupported and therefore might contain security problems that have not been addressed.

Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures/configurations

Please note that the fix for CVE-2005-0449 required changing the external symbol linkages (kernel module ABI) for the ip_defrag() and ip_ct_gather_frags() functions. Any third-party module using either of these would also need to be fixed.

Updated evolution packages that fix a format string issue are now available.

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

Evolution is the GNOME collection of personal information management (PIM) tools.

A format string bug was found in Evolution. If a user tries to save a carefully crafted meeting or appointment, arbitrary code may be executed as the user running Evolution. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-2550 to this issue.

Additionally, several other format string bugs were found in Evolution. If a user views a malicious vCard, connects to a malicious LDAP server, or displays a task list from a malicious remote server, arbitrary code may be executed as the user running Evolution. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-2549 to this issue. Please note that this issue only affects Red Hat Enterprise Linux 4.

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

Updated xorg-x11 packages that fix a security issue as well as various bugs 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 X11 is the X Window System which provides the core functionality of the Linux GUI desktop.

An integer overflow flaw was found in libXpm, which is used by some applications for loading of XPM images. An attacker could create a carefully crafted XPM file in such a way that it could cause an application linked with libXpm to execute arbitrary code when the file was opened by a victim. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0605 to this issue.

Since the initial release of Red Hat Enterprise Linux 4, a number of issues have been addressed in the X.Org X11 X Window System. This erratum also updates X11R6.8 to the latest stable point release (6.8.2), which includes various stability and reliability fixes including (but not limited to) the following :

  - The 'radeon' driver has been modified to disable     'RENDER' acceleration by default, due to a bug in the     implementation which has not yet been isolated. This can     be manually re-enabled by using the following option in     the device section of the X server config file :

Option 'RenderAccel'

  - The 'vmware' video driver is now available on 64-bit     AMD64 and compatible systems.

  - The Intel 'i810' video driver is now available on 64-bit     EM64T systems.

  - Stability fixes in the X Server's PCI handling layer for     64-bit systems, which resolve some issues reported by     'vesa' and 'nv' driver users.

  - Support for Hewlett Packard's Itanium ZX2 chipset.

  - Nvidia 'nv' video driver update provides support for     some of the newer Nvidia chipsets, as well as many     stability and reliability fixes.

  - Intel i810 video driver stability update, which fixes     the widely reported i810/i815 screen refresh issues many     have experienced.

  - Packaging fixes for multilib systems, which permit both     32-bit and 64-bit X11 development environments to be     simultaneously installed without file conflicts.

In addition to the above highlights, the X.Org X11 6.8.2 release has a large number of additional stability fixes which resolve various other issues reported since the initial release of Red Hat Enterprise Linux 4.

All users of X11 should upgrade to these updated packages, which resolve these issues.

Updated rsh packages that fix various bugs and a theoretical security issue are now available.

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

The rsh package contains a set of programs that allow users to run commands on remote machines, login to other machines, and copy files between machines, using the rsh, rlogin, and rcp commands. All three of these commands use rhosts-style authentication.

The rcp protocol allows a server to instruct a client to write to arbitrary files outside of the current directory. This could potentially cause a security issue if a user uses rcp to copy files from a malicious server. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0175 to this issue.

These updated packages also address the following bugs :

The rlogind server reported 'SIGCHLD set to SIG_IGN but calls wait()' message to the system log because the original BSD code was ported incorrectly to linux.

The rexecd server did not function on systems where client hostnames were not in the DNS service, because server code called gethostbyaddr() for each new connection.

The rcp command incorrectly used the 'errno' variable and produced erroneous error messages.

The rexecd command ignored settings in the /etc/security/limits file, because the PAM session was incorrectly initialized.

All users of rsh should upgrade to these updated packages, which resolve these issues.

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

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

D-BUS is a system for sending messages between applications. It is used both for the systemwide message bus service, and as a per-user-login-session messaging facility.

Dan Reed discovered that a user can send and listen to messages on another user's per-user session bus if they know the address of the socket. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0201 to this issue. In Red Hat Enterprise Linux 4, the per-user session bus is only used for printing notifications, therefore this issue would only allow a local user to examine or send additional print notification messages.

Users of dbus are advised to upgrade to these updated packages, which contain backported patches to correct this issue.

Updated openoffice.org packages are now available.

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

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

A Sun security specialist reported an issue with the application framework. An attacker could put macros into document locations that could cause OpenOffice.org to execute them when the file was opened by a victim. (CVE-2006-2198)

A bug was found in the OpenOffice.org Java virtual machine implementation. An attacker could write a carefully crafted Java applet that can break through the 'sandbox' and have full access to system resources with the current user privileges. (CVE-2006-2199)

A buffer overflow bug was found in the OpenOffice.org file processor.
An attacker could create a carefully crafted XML file that could cause OpenOffice.org to write data to an arbitrary location in memory when the file was opened by a victim. (CVE-2006-3117)

All users of OpenOffice.org are advised to upgrade to these updated packages, which contain backported fixes for these issues.

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

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

PostgreSQL is an advanced Object-Relational database management system (DBMS).

A bug was found in the way PostgreSQL's PQescapeString function escapes strings when operating in a multibyte character encoding. It is possible for an attacker to provide an application a carefully crafted string containing invalidly-encoded characters, which may be improperly escaped, allowing the attacker to inject malicious SQL.
While this update fixes how PQescapeString operates, the PostgreSQL server has also been modified to prevent such an attack occurring through unpatched clients. (CVE-2006-2313, CVE-2006-2314). More details about this issue are available in the linked PostgreSQL technical documentation.

An integer signedness bug was found in the way PostgreSQL generated password salts. The actual salt size is only half the size of the expected salt, making the process of brute forcing password hashes slightly easier. This update will not strengthen already existing passwords, but all newly assigned passwords will have the proper salt length. (CVE-2006-0591)

Users of PostgreSQL should upgrade to these updated packages containing PostgreSQL version 7.4.13, which corrects these issues.

Updated quagga packages that fix several security vulnerabilities are now available.

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

Quagga manages the TCP/IP based routing protocol. It takes a multi-server and multi-thread approach to resolve the current complexity of the Internet.

An information disclosure flaw was found in the way Quagga interprets RIP REQUEST packets. RIPd in Quagga will respond to RIP REQUEST packets for RIP versions that have been disabled or that have authentication enabled, allowing a remote attacker to acquire information about the local network. (CVE-2006-2223)

A route injection flaw was found in the way Quagga interprets RIPv1 RESPONSE packets when RIPv2 authentication is enabled. It is possible for a remote attacker to inject arbitrary route information into the RIPd routing tables. This issue does not affect Quagga configurations where only RIPv2 is specified. (CVE-2006-2224)

A denial of service flaw was found in Quagga's telnet interface. If an attacker is able to connect to the Quagga telnet interface, it is possible to cause Quagga to consume vast quantities of CPU resources by issuing a malformed 'sh' command. (CVE-2006-2276)

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

Updated sendmail packages are now available to fix a denial of service security issue.

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

[Updated 27 June 2006] The sendmail-docs packages for Red Hat Enterprise Linux 3 have been updated to the correct version and release.

Sendmail is a Mail Transport Agent (MTA) used to send mail between machines.

A flaw in the handling of multi-part MIME messages was discovered in Sendmail. A remote attacker could create a carefully crafted message that could crash the sendmail process during delivery (CVE-2006-1173).
By default on Red Hat Enterprise Linux, Sendmail is configured to only accept connections from the local host. Therefore, only users who have configured Sendmail to listen to remote hosts would be remotely vulnerable to this issue.

Users of Sendmail are advised to upgrade to these erratum packages, which contain a backported patch from the Sendmail team to correct this issue.

An updated xscreensaver package that fixes two security flaws is 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.

XScreenSaver is a collection of screensavers.

A keyboard focus flaw was found in the way XScreenSaver prompts the user to enter their password to unlock the screen. XScreenSaver did not properly ensure it had proper keyboard focus, which could leak a users password to the program with keyboard focus. This behavior is not common, as only certain applications exhibit this focus error.
(CVE-2004-2655)

Several flaws were found in the way various XScreenSaver screensavers create temporary files. It may be possible for a local attacker to create a temporary file in way that could overwrite a different file to which the user running XScreenSaver has write permissions.
(CVE-2003-1294)

Users of XScreenSaver should upgrade to this updated package, which contains backported patches to correct these issues.

An updated mailman package that fixes a denial of service flaw is 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.

Mailman is software to help manage email discussion lists.

A flaw was found in the way Mailman handles MIME multipart messages.
An attacker could send a carefully crafted MIME multipart email message to a mailing list run by Mailman which would cause that particular mailing list to stop working. (CVE-2006-0052)

Users of Mailman should upgrade to this updated package, which contains backported patches to correct this issue.

Updated libtiff packages that fix several security flaws are now available for Red Hat Enterprise Linux.

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

The libtiff package contains a library of functions for manipulating TIFF (Tagged Image File Format) image format files.

An integer overflow flaw was discovered in libtiff. An attacker could create a carefully crafted TIFF file in such a way that it could cause an application linked with libtiff to crash or possibly execute arbitrary code. (CVE-2006-2025)

A double free flaw was discovered in libtiff. An attacker could create a carefully crafted TIFF file in such a way that it could cause an application linked with libtiff to crash or possibly execute arbitrary code. (CVE-2006-2026)

Several denial of service flaws were discovered in libtiff. An attacker could create a carefully crafted TIFF file in such a way that it could cause an application linked with libtiff to crash.
(CVE-2006-2024, CVE-2006-2120)

All users are advised to upgrade to these updated packages, which contain backported fixes for these issues.

Updated Ethereal packages that fix various security vulnerabilities are now available.

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

Ethereal is a program for monitoring network traffic.

Several denial of service bugs were found in Ethereal's protocol dissectors. Ethereal could crash or stop responding if it reads a malformed packet off the network. (CVE-2006-1932, CVE-2006-1933, CVE-2006-1937, CVE-2006-1938, CVE-2006-1939, CVE-2006-1940)

Several buffer overflow bugs were found in Ethereal's COPS, telnet, and ALCAP dissectors as well as Network Instruments file code and NetXray/Windows Sniffer file code. Ethereal could crash or execute arbitrary code if it reads a malformed packet off the network.
(CVE-2006-1934, CVE-2006-1935, CVE-2006-1936)

Users of ethereal should upgrade to these updated packages containing version 0.99.0, which is not vulnerable to these issues.

Updated mozilla packages that fix several security bugs are now available.

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

[Updated 24 Apr 2006] 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 is an open source Web browser, advanced email and newsgroup client, IRC chat client, and HTML editor.

Several bugs were found in the way Mozilla processes malformed JavaScript. A malicious web page could modify the content of a different open web page, possibly stealing sensitive information or conducting a cross-site scripting attack. (CVE-2006-1731, CVE-2006-1732, CVE-2006-1741)

Several bugs were found in the way Mozilla processes certain JavaScript actions. A malicious web page could execute arbitrary JavaScript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.
(CVE-2006-1727, CVE-2006-1728, CVE-2006-1733, CVE-2006-1734, CVE-2006-1735, CVE-2006-1742)

Several bugs were found in the way Mozilla processes malformed web pages. A carefully crafted malicious web page could cause the execution of arbitrary code as the user running Mozilla.
(CVE-2006-0748, CVE-2006-0749, CVE-2006-1730, CVE-2006-1737, CVE-2006-1738, CVE-2006-1739, CVE-2006-1790)

A bug was found in the way Mozilla displays the secure site icon. If a browser is configured to display the non-default secure site modal warning dialog, it may be possible to trick a user into believing they are viewing a secure site. (CVE-2006-1740)

A bug was found in the way Mozilla allows JavaScript mutation events on 'input' form elements. A malicious web page could be created in such a way that when a user submits a form, an arbitrary file could be uploaded to the attacker. (CVE-2006-1729)

A bug was found in the way Mozilla executes in-line mail forwarding.
If a user can be tricked into forwarding a maliciously crafted mail message as in-line content, it is possible for the message to execute JavaScript with the permissions of 'chrome'. (CVE-2006-0884)

Users of Mozilla are advised to upgrade to these updated packages containing Mozilla version 1.7.13 which corrects these issues.

Updated PHP packages that fix multiple 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.

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

The phpinfo() PHP function did not properly sanitize long strings. An attacker could use this to perform cross-site scripting attacks against sites that have publicly-available PHP scripts that call phpinfo(). (CVE-2006-0996)

The html_entity_decode() PHP function was found to not be binary safe.
An attacker could use this flaw to disclose a certain part of the memory. In order for this issue to be exploitable the target site would need to have a PHP script which called the 'html_entity_decode()' function with untrusted input from the user and displayed the result. (CVE-2006-1490)

The error handling output was found to not properly escape HTML output in certain cases. An attacker could use this flaw to perform cross-site scripting attacks against sites where both display_errors and html_errors are enabled. (CVE-2006-0208)

An input validation error was found in the 'mb_send_mail()' function.
An attacker could use this flaw to inject arbitrary headers in a mail sent via a script calling the 'mb_send_mail()' function where the 'To' parameter can be controlled by the attacker. (CVE-2005-3883)

A buffer overflow flaw was discovered in uw-imap, the University of Washington's IMAP Server. php-imap is compiled against the static c-client libraries from imap and therefore needed to be recompiled against the fixed version. This issue only affected Red Hat Enterprise Linux 3. (CVE-2005-2933).

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

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

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

OpenMotif provides libraries which implement the Motif industry standard graphical user interface.

A number of buffer overflow flaws were discovered in OpenMotif's libUil library. It is possible for an attacker to execute arbitrary code as a victim who has been tricked into executing a program linked against OpenMotif, which then loads a malicious User Interface Language (UIL) file. (CVE-2005-3964)

Users of OpenMotif are advised to upgrade to these erratum packages, which contain a backported security patch to correct this issue.

Updated freeradius packages that fix an authentication weakness are now available.

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

FreeRADIUS is a high-performance and highly configurable free RADIUS server designed to allow centralized authentication and authorization for a network.

A bug was found in the way FreeRADIUS authenticates users via the MSCHAP V2 protocol. It is possible for a remote attacker to authenticate as a victim by sending a malformed MSCHAP V2 login request to the FreeRADIUS server. (CVE-2006-1354)

Please note that FreeRADIUS installations not using the MSCHAP V2 protocol for authentication are not vulnerable to this issue.

A bug was also found in the way FreeRADIUS logs SQL errors from the sql_unixodbc module. It may be possible for an attacker to cause FreeRADIUS to crash or execute arbitrary code if they are able to manipulate the SQL database FreeRADIUS is connecting to.
(CVE-2005-4744)

Users of FreeRADIUS should update to these erratum packages, which contain backported patches and are not vulnerable to these issues.

Updated ipsec-tools packages that fix a bug in racoon are now available.

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

The ipsec-tools package is used in conjunction with the IPsec functionality in the linux kernel and includes racoon, an IKEv1 keying daemon.

A denial of service flaw was found in the ipsec-tools racoon daemon.
If a victim's machine has racoon configured in a non-recommended insecure manner, it is possible for a remote attacker to crash the racoon daemon. (CVE-2005-3732)

Users of ipsec-tools should upgrade to these updated packages, which contain backported patches, and are not vulnerable to these issues.

Updated sendmail packages to fix a security issue are now available for Red Hat Enterprise Linux 3 and 4.

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

Sendmail is a Mail Transport Agent (MTA) used to send mail between machines.

A flaw in the handling of asynchronous signals was discovered in Sendmail. A remote attacker may be able to exploit a race condition to execute arbitrary code as root. The Common Vulnerabilities and Exposures project assigned the name CVE-2006-0058 to this issue.

By default on Red Hat Enterprise Linux 3 and 4, Sendmail is configured to only accept connections from the local host. Therefore, only users who have configured Sendmail to listen to remote hosts would be able to be remotely exploited by this vulnerability.

Users of Sendmail are advised to upgrade to these erratum packages, which contain a backported patch from the Sendmail team to correct this issue.

An updated mailman package that fixes two security issues is 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.

Mailman is software to help manage email discussion lists.

A flaw in handling of UTF8 character encodings was found in Mailman.
An attacker could send a carefully crafted email message to a mailing list run by Mailman which would cause that particular mailing list to stop working. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-3573 to this issue.

A flaw in date handling was found in Mailman version 2.1.4 through 2.1.6. An attacker could send a carefully crafted email message to a mailing list run by Mailman which would cause the Mailman server to crash. (CVE-2005-4153).

Users of Mailman should upgrade to this updated package, which contains backported patches to correct these issues.

Updated mozilla packages that fix several security bugs are now available.

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

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

Igor Bukanov discovered a bug in the way Mozilla's JavaScript interpreter dereferences objects. If a user visits a malicious web page, Mozilla could crash or execute arbitrary code as the user running Mozilla. The Common Vulnerabilities and Exposures project assigned the name CVE-2006-0292 to this issue.

moz_bug_r_a4 discovered a bug in Mozilla's XULDocument.persist() function. A malicious web page could inject arbitrary RDF data into a user's localstore.rdf file, which can cause Mozilla to execute arbitrary JavaScript when a user runs Mozilla. (CVE-2006-0296)

A denial of service bug was found in the way Mozilla saves history information. If a user visits a web page with a very long title, it is possible Mozilla will crash or take a very long time the next time it is run. (CVE-2005-4134)

Note that the Red Hat Enterprise Linux 3 packages also fix a bug when using XSLT to transform documents. Passing DOM Nodes as parameters to functions expecting an xsl:param could cause Mozilla to throw an exception.

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

Updated Python packages are now available to correct a security issue.

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 found in Python's PCRE library that could be triggered by a maliciously crafted regular expression. On systems that accept arbitrary regular expressions from untrusted users, this could be exploited to execute arbitrary code with the privileges of the application using the library. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-2491 to this issue.

Users of Python should upgrade to these updated packages, which contain a backported patch that is not vulnerable to this issue.

An updated tar package that fixes a path traversal flaw is now available.

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

The GNU tar program saves many files together in one archive and can restore individual files (or all of the files) from that archive.

In 2002, a path traversal flaw was found in the way GNU tar extracted archives. A malicious user could create a tar archive that could write to arbitrary files to which the user running GNU tar has write access (CVE-2002-0399). Red Hat included a backported security patch to correct this issue in Red Hat Enterprise Linux 3, and an erratum for Red Hat Enterprise Linux 2.1 users was issued.

During internal testing, we discovered that our backported security patch contained an incorrect optimization and therefore was not sufficient to completely correct this vulnerability. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2005-1918 to this issue.

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

Updated ImageMagick packages that fix two security issues are now available.

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

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

A shell command injection flaw was found in ImageMagick's 'display' command. It is possible to execute arbitrary commands by tricking a user into running 'display' on a file with a specially crafted name.
The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2005-4601 to this issue.

A format string flaw was discovered in the way ImageMagick handles filenames. It may be possible to execute arbitrary commands by tricking a user into running a carefully crafted ImageMagick command.
(CVE-2006-0082)

Users of ImageMagick should upgrade to these updated packages, which contain backported patches and are not vulnerable to these issues.

Updated mod_auth_pgsql packages that fix format string security issues are now available for Red Hat Enterprise Linux 3 and 4.

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

The mod_auth_pgsql package is an httpd module that allows user authentication against information stored in a PostgreSQL database.

Several format string flaws were found in the way mod_auth_pgsql logs information. It may be possible for a remote attacker to execute arbitrary code as the 'apache' user if mod_auth_pgsql is used for user authentication. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-3656 to this issue.

Please note that this issue only affects servers which have mod_auth_pgsql installed and configured to perform user authentication against a PostgreSQL database.

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

This issue does not affect the mod_auth_pgsql package supplied with Red Hat Enterprise Linux 2.1.

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

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

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.

Chris Evans discovered several flaws in the way CUPS processes PDF files. An attacker could construct a carefully crafted PDF file that could cause CUPS to crash or possibly execute arbitrary code when opened. The Common Vulnerabilities and Exposures project assigned the names CVE-2005-3624, CVE-2005-3625, CVE-2005-3626, and CVE-2005-3627 to these issues.

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

ID	Name	Severity
21947	CentOS 4 : zlib (CESA-2005:569)	high
21946	CentOS 4 : krb5 (CESA-2005:567)	high
21945	CentOS 4 : ruby (CESA-2005:543)	high
21944	CentOS 4 : HelixPlayer (CESA-2005:517)	medium
21943	CentOS 4 : kernel (CESA-2005:514)	high
21942	CentOS 4 : tcpdump (CESA-2005:505)	medium
21941	CentOS 3 / 4 : sysreport (CESA-2005:502)	high
21940	CentOS 4 : spamassassin (CESA-2005:498)	medium
21939	CentOS 4 : firefox (CESA-2005:434)	high
21938	CentOS 4 : gnutls (CESA-2005:430)	medium
21937	CentOS 4 : kernel (CESA-2005:420)	high
21936	CentOS 3 / 4 : tcpdump (CESA-2005:417)	medium
21935	CentOS 4 : cyrus-imapd (CESA-2005:408)	high
21934	CentOS 4 : xorg-x11 (CESA-2005:396)	medium
21933	CentOS 4 : kdelibs (CESA-2005:393)	high
21932	CentOS 4 : HelixPlayer (CESA-2005:392)	medium
21931	CentOS 4 : mozilla (CESA-2005:386)	high
21930	CentOS 3 : mozilla (CESA-2005:384)	high
21929	CentOS 4 : Firefox (CESA-2005:383)	high
21928	CentOS 3 / 4 : kernel (CESA-2005:366)	high
21927	CentOS 4 : exim (CESA-2005:358)	high
21926	CentOS 3 : mysql-server (CESA-2005:348)	medium
21925	CentOS 4 : slocate (CESA-2005:346)	low
21924	CentOS 3 / 4 : xloadimage (CESA-2005:332)	high
21923	CentOS 3 : kernel (CESA-2005:293)	high
21922	CentOS 3 / 4 : Evolution (CESA-2005:267)	high
21921	CentOS 4 : xorg-x11 (CESA-2005:198)	high
21920	CentOS 4 : rsh (CESA-2005:165)	medium
21919	CentOS 4 : dbus (CESA-2005:102)	low
21906	CentOS 3 / 4 : openoffice.org (CESA-2006:0573)	high
21905	CentOS 3 / 4 : postgresql (CESA-2006:0526)	high
21904	CentOS 3 / 4 : quagga (CESA-2006:0525)	medium
21903	CentOS 3 / 4 : sendmail (CESA-2006:0515)	medium
21902	CentOS 3 : xscreensaver (CESA-2006:0498)	medium
21901	CentOS 3 / 4 : mailman (CESA-2006:0486)	medium
21900	CentOS 3 / 4 : libtiff (CESA-2006:0425)	medium
21899	CentOS 3 / 4 : ethereal (CESA-2006:0420)	critical
21898	CentOS 3 / 4 : mozilla (CESA-2006:0329)	critical
21897	CentOS 3 / 4 : php (CESA-2006:0276)	high
21896	CentOS 3 / 4 : openmotif (CESA-2006:0272)	high
21895	CentOS 3 / 4 : freeradius (CESA-2006:0271)	high
21894	CentOS 3 / 4 : ipsec-tools (CESA-2006:0267)	critical
21893	CentOS 3 / 4 : sendmail (CESA-2006:0264)	high
21892	CentOS 3 / 4 : mailman (CESA-2006:0204)	high
21891	CentOS 3 / 4 : mozilla (CESA-2006:0199)	high
21890	CentOS 3 / 4 : python (CESA-2006:0197)	high
21889	CentOS 3 : tar (CESA-2006:0195)	low
21888	CentOS 3 / 4 : ImageMagick (CESA-2006:0178)	high
21887	CentOS 3 / 4 : mod_auth_pgsql (CESA-2006:0164)	critical
21886	CentOS 3 / 4 : cups (CESA-2006:0163)	critical

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