Issued:

2004-10-04

Updated:

2004-10-04

RHSA-2004:478 - XFree86 security update

Synopsis

XFree86 security update

Type/Severity

Security Advisory Moderate

Topic

Updated XFree86 packages that fix several security flaws in libXpm, as well as other bugs, are now available for Red Hat Enterprise Linux 3.

Description

XFree86 is an open source implementation of the X Window System. It provides the basic low level functionality which full fledged graphical user interfaces (GUIs) such as GNOME and KDE are designed upon.

During a source code audit, Chris Evans discovered several stack overflow flaws and an integer overflow flaw in the X.Org libXpm library used to decode XPM (X PixMap) images. An attacker could create a carefully crafted XPM file which would cause an application to crash or potentially execute arbitrary code if opened by a victim. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2004-0687, CAN-2004-0688, and CAN-2004-0692 to these issues.

A flaw was found in the X Display Manager (XDM). XDM is shipped with Red Hat Enterprise Linux, but is not used by default. XDM opened a chooserFd TCP socket even if the DisplayManager.requestPort parameter was set to 0. This allowed authorized users to access a machine remotely via X, even if the administrator had configured XDM to refuse such connections. Although XFree86 4.3.0 was not vulnerable to this issue, Red Hat Enterprise Linux 3 contained a backported patch which introduced this flaw. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0419 to this issue.

Users are advised to upgrade to these erratum packages, which contain backported security patches to correct these and a number of other issues.

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system:

This content is not included.http://www.redhat.com/docs/manuals/enterprise/

Affected Products

Updated Packages

• XFree86-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-2-75dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-twm-4.3.0-69.EL.ia64.rpm
• XFree86-Mesa-libGL-4.3.0-69.EL.i386.rpm
• XFree86-Xnest-4.3.0-69.EL.ia64.rpm
• XFree86-truetype-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-Xvfb-4.3.0-69.EL.ia64.rpm
• XFree86-Mesa-libGLU-4.3.0-69.EL.i386.rpm
• XFree86-doc-4.3.0-69.EL.ia64.rpm
• XFree86-xdm-4.3.0-69.EL.ia64.rpm
• XFree86-libs-data-4.3.0-69.EL.ia64.rpm
• XFree86-Mesa-libGLU-4.3.0-69.EL.ia64.rpm
• XFree86-font-utils-4.3.0-69.EL.ia64.rpm
• XFree86-Mesa-libGL-4.3.0-69.EL.ia64.rpm
• XFree86-75dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-base-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-9-75dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-15-100dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-cyrillic-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-xfs-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-14-100dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-14-75dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-libs-4.3.0-69.EL.ia64.rpm
• XFree86-syriac-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-libs-4.3.0-69.EL.i386.rpm
• XFree86-xauth-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-2-100dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-100dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-15-75dpi-fonts-4.3.0-69.EL.ia64.rpm
• XFree86-devel-4.3.0-69.EL.ia64.rpm
• XFree86-sdk-4.3.0-69.EL.ia64.rpm
• XFree86-tools-4.3.0-69.EL.ia64.rpm
• XFree86-ISO8859-9-100dpi-fonts-4.3.0-69.EL.ia64.rpm

Fixes

• This content is not included.BZ - 124901
• This content is not included.BZ - 126205
• This content is not included.BZ - 129744
• This content is not included.BZ - 131121
• This content is not included.BZ - 132121

CVEs

• CVE-2004-0687
• CVE-2004-0688
• CVE-2004-0692
• CVE-2004-0419

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.