- Issued:
- 2011-04-11
- Updated:
- 2011-04-11
RHSA-2011:0433 - Moderate: xorg-x11-server-utils security update
Synopsis
Moderate: xorg-x11-server-utils security update
Type/Severity
Security Advisory Moderate
Topic
An updated xorg-x11-server-utils package that fixes one security issue is now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Description
The xorg-x11-server-utils package contains a collection of utilities used to modify and query the runtime configuration of the X.Org server. X.Org is an open source implementation of the X Window System.
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-server-utils should upgrade to this updated package, which contains a backported patch to resolve this issue. All running X.Org server instances must be restarted for this update to take effect.
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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.6 | ia64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.6 | i386 |
| Red Hat Enterprise Linux for Scientific Computing | 6 | x86_64 |
| Red Hat Enterprise Linux for Power, big endian | 6 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian | 5 | ppc |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 5.6 | ppc |
| Red Hat Enterprise Linux for IBM z Systems | 6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems | 5 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 5.6 | s390x |
| Red Hat Enterprise Linux Workstation | 6 | x86_64 |
| Red Hat Enterprise Linux Workstation | 6 | i386 |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Server | 6 | x86_64 |
| Red Hat Enterprise Linux Server | 6 | i386 |
| Red Hat Enterprise Linux Server | 5 | x86_64 |
| Red Hat Enterprise Linux Server | 5 | ia64 |
| Red Hat Enterprise Linux Server | 5 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 6 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 6 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 5 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 5 | i386 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 5.6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 5.6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - AUS | 5.6 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 5.6 | ia64 |
| Red Hat Enterprise Linux Server - AUS | 5.6 | i386 |
| Red Hat Enterprise Linux Desktop | 6 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | i386 |
| Red Hat Enterprise Linux Desktop | 5 | x86_64 |
| Red Hat Enterprise Linux Desktop | 5 | i386 |
Updated Packages
- xorg-x11-server-utils-7.4-15.el6_0.1.src.rpm
- xorg-x11-server-utils-debuginfo-7.4-15.el6_0.1.x86_64.rpm
- xorg-x11-server-utils-7.4-15.el6_0.1.x86_64.rpm
- xorg-x11-server-utils-7.1-5.el5_6.1.src.rpm
- xorg-x11-server-utils-7.1-5.el5_6.1.ppc.rpm
- xorg-x11-server-utils-7.4-15.el6_0.1.i686.rpm
- xorg-x11-server-utils-debuginfo-7.4-15.el6_0.1.ppc64.rpm
- xorg-x11-server-utils-7.4-15.el6_0.1.s390x.rpm
- xorg-x11-server-utils-7.1-5.el5_6.1.s390x.rpm
- xorg-x11-server-utils-debuginfo-7.4-15.el6_0.1.s390x.rpm
- xorg-x11-server-utils-7.4-15.el6_0.1.ppc64.rpm
- xorg-x11-server-utils-7.1-5.el5_6.1.ia64.rpm
- xorg-x11-server-utils-7.1-5.el5_6.1.x86_64.rpm
- xorg-x11-server-utils-7.1-5.el5_6.1.i386.rpm
- xorg-x11-server-utils-debuginfo-7.4-15.el6_0.1.i686.rpm
Fixes
CVEs
References
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.