CVSS2
Attack Vector
NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
EPSS
Percentile
90.5%
CentOS Errata and Security Advisory CESA-2005:501
XFree86 is an implementation of the X Window System, which provides
the core functionality for the Linux graphical desktop.
Several integer overflow bugs were found in the way XFree86 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 CAN-2005-2495 to this issue.
Additionally this update adds the following new features in this release:
The following bugs were also fixed in this release:
A problem with the X server’s module loading system that led to cache
incoherency on the Itanium architecture.
The X server’s PCI config space accesses caused contention
with the kernel if accesses occurred while the kernel lock was held.
X font server (xfs) crashed when accessing Type 1 fonts
via showfont.
A problem with the X transport library prevented X applications
from starting if the hostname started with a digit.
An issue where refresh rates were being restricted to 60Hz on
some Intel i8xx systems
Users of XFree86 should upgrade to these updated packages, which contain a
backported patch and are not vulnerable to this issue.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2005-September/074331.html
https://lists.centos.org/pipermail/centos-announce/2005-September/074332.html
https://lists.centos.org/pipermail/centos-announce/2005-September/074333.html
https://lists.centos.org/pipermail/centos-announce/2005-September/074338.html
Affected packages:
XFree86
XFree86-100dpi-fonts
XFree86-75dpi-fonts
XFree86-ISO8859-14-100dpi-fonts
XFree86-ISO8859-14-75dpi-fonts
XFree86-ISO8859-15-100dpi-fonts
XFree86-ISO8859-15-75dpi-fonts
XFree86-ISO8859-2-100dpi-fonts
XFree86-ISO8859-2-75dpi-fonts
XFree86-ISO8859-9-100dpi-fonts
XFree86-ISO8859-9-75dpi-fonts
XFree86-Mesa-libGL
XFree86-Mesa-libGLU
XFree86-Xnest
XFree86-Xvfb
XFree86-base-fonts
XFree86-cyrillic-fonts
XFree86-devel
XFree86-doc
XFree86-font-utils
XFree86-libs
XFree86-libs-data
XFree86-sdk
XFree86-syriac-fonts
XFree86-tools
XFree86-truetype-fonts
XFree86-twm
XFree86-xauth
XFree86-xdm
XFree86-xfs
Upstream details at:
https://access.redhat.com/errata/RHSA-2005:501