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Red Hat: RHSA-2011:0432-01 Moderate: xorg-x11 Code Exec

red hat
Calendar Grey April 11, 2011
Dist Redhat Esm H88
Ubuntu provides a significant security notice regarding systemd updates that mitigate potential exploitation threats in Ubuntu Server.
Updated xorg-x11 packages that fix one security issue are now available for Red Hat Enterprise Linux 4

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

Summary

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 X.Org X server resource database utility, xrdb. Certain variables were not properly sanitized during the launch of a user's graphical session, which could possibly allow a remote attacker to execute arbitrary code with root privileges, if they were able to make the display manager execute xrdb with a specially-crafted X client hostname. For example, by configuring the hostname on the target system via a crafted DHCP reply, or by using the X Display Manager Control Protocol (XDMCP) to connect to that system from a host that has a special DNS name. (CVE-2011-0465)
Red Hat would like to thank Matthieu Herrb for reporting this issue. Upstream acknowledges Sebastian Krahmer of the SuSE Security Team as the original reporter.
Users of xorg-x11 should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running X.Org server instances must be restarted for this update to take effect.

Topics%20covered

Topics Covered

security advisory moderate security issue update code execution Red Hat Enterprise Linux xorg-x11

References

https://access.redhat.com/security/cve/CVE-2011-0465 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: xorg-x11-6.8.2-1.EL.67.i386.rpm xorg-x11-Mesa-libGL-6.8.2-1.EL.67.i386.rpm xorg-x11-Mesa-libGLU-6.8.2-1.EL.67.i386.rpm xorg-x11-Xdmx-6.8.2-1.EL.67.i386.rpm xorg-x11-Xnest-6.8.2-1.EL.67.i386.rpm xorg-x11-Xvfb-6.8.2-1.EL.67.i386.rpm xorg-x11-deprecated-libs-6.8.2-1.EL.67.i386.rpm xorg-x11-deprecated-libs-devel-6.8.2-1.EL.67.i386.rpm xorg-x11-devel-6.8.2-1.EL.67.i386.rpm xorg-x11-doc-6.8.2-1.EL.67.i386.rpm xorg-x11-font-utils-6.8.2-1.EL.67.i386.rpm xorg-x11-libs-6.8.2-1.EL.67.i386.rpm xorg-x11-sdk-6.8.2-1.EL.67.i386.rpm xorg-x11-tools-6.8.2-1.EL.67.i386.rpm xorg-x11-twm-6.8.2-1.EL.67.i386.rpm xorg-x11-xauth-6.8.2-1.EL.67.i386.rpm xorg-x11-xdm-6.8.2-1.EL.67.i386.rpm xorg-x11-xfs-6.8.2-1.EL.67.i386.rpm
ia64: xorg-x11-6.8.2-1.EL.67.ia64.rpm xorg-x11-Mesa-libGL-6.8.2-1.EL.67.i386.rpm xorg-x11-Mesa-libGL-6.8.2-1.EL.67.ia64.rpm xorg-x11-Mesa-libGLU-6.8.2-1.EL.67.i386.rpm xorg-x11-Mesa-libGLU-6.8.2-1.EL.67.ia64.rpm xorg-x11-Xdmx-6.8.2-1.EL.67.ia64.rpm xorg-x11-Xnest-6.8.2-1.EL.67.ia64.rpm xorg-x11-Xvfb-6.8.2-1.EL.67.ia64.rpm xorg-x11-deprecated-libs-6.8.2-1.EL.67.i386.rpm xorg-x11-deprecated-libs-6.8.2-1.EL.67.ia64.rpm xorg-x11-deprecated-libs-devel-6.8.2-1.EL.67.ia64.rpm xorg-x11-devel-6.8.2-1.EL.67.ia64.rpm

Read the Full Advisory


Advisory ID: RHSA-2011:0432-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0432.html
Issue date: 2011-04-11

Topic

Updated xorg-x11 packages that fix one security issue are now available forRed Hat Enterprise Linux 4.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate security issue update code execution Red Hat Enterprise Linux xorg-x11

Relevant Releases Architectures

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Bugs Fixed

680196 - CVE-2011-0465 xorg: xrdb code execution via crafted X client hostname

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