- Issued:
- 2011-12-19
- Updated:
- 2011-12-19
RHSA-2011:1834 - Important: libXfont security update
Synopsis
Important: libXfont security update
Type/Severity
Security Advisory Important
Topic
Updated libXfont packages that fix one security issue are now available for Red Hat Enterprise Linux 5.6 Extended Update Support.
The Red Hat Security Response Team has rated this update as having important 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 libXfont packages provide the X.Org libXfont runtime library. X.Org is an open source implementation of the X Window System.
A buffer overflow flaw was found in the way the libXfont library, used by the X.Org server, handled malformed font files compressed using UNIX compress. A malicious, local user could exploit this issue to potentially execute arbitrary code with the privileges of the X.Org server. (CVE-2011-2895)
Users of libXfont 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 the 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 Power, big endian - Extended Update Support | 5.6 | ppc |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 5.6 | s390x |
| 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 - AUS | 5.6 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 5.6 | ia64 |
| Red Hat Enterprise Linux Server - AUS | 5.6 | i386 |
Updated Packages
- libXfont-1.2.2-1.0.3.el5_6.src.rpm
- libXfont-devel-1.2.2-1.0.3.el5_6.x86_64.rpm
- libXfont-1.2.2-1.0.3.el5_6.x86_64.rpm
- libXfont-1.2.2-1.0.3.el5_6.s390x.rpm
- libXfont-devel-1.2.2-1.0.3.el5_6.ia64.rpm
- libXfont-devel-1.2.2-1.0.3.el5_6.i386.rpm
- libXfont-1.2.2-1.0.3.el5_6.s390.rpm
- libXfont-devel-1.2.2-1.0.3.el5_6.ppc.rpm
- libXfont-1.2.2-1.0.3.el5_6.ia64.rpm
- libXfont-devel-1.2.2-1.0.3.el5_6.ppc64.rpm
- libXfont-devel-1.2.2-1.0.3.el5_6.s390x.rpm
- libXfont-1.2.2-1.0.3.el5_6.ppc64.rpm
- libXfont-1.2.2-1.0.3.el5_6.ppc.rpm
- libXfont-1.2.2-1.0.3.el5_6.i386.rpm
- libXfont-devel-1.2.2-1.0.3.el5_6.s390.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.