Issued:
2012-01-24
Updated:
2012-01-24

RHSA-2012:0062 - Moderate: t1lib security update

Synopsis

Moderate: t1lib security update

Type/Severity

Security Advisory Moderate

Topic

Updated t1lib packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Description

The t1lib library allows you to rasterize bitmaps from PostScript Type 1 fonts.

Two heap-based buffer overflow flaws were found in the way t1lib processed Adobe Font Metrics (AFM) files. If a specially-crafted font file was opened by an application linked against t1lib, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-2642, CVE-2011-0433)

An invalid pointer dereference flaw was found in t1lib. A specially-crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0764)

A use-after-free flaw was found in t1lib. A specially-crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1553)

An off-by-one flaw was found in t1lib. A specially-crafted font file could, when opened, cause an application linked against t1lib to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-1554)

An out-of-bounds memory read flaw was found in t1lib. A specially-crafted font file could, when opened, cause an application linked against t1lib to crash. (CVE-2011-1552)

Red Hat would like to thank the Evince development team for reporting CVE-2010-2642. Upstream acknowledges Jon Larimer of IBM X-Force as the original reporter of CVE-2010-2642.

All users of t1lib are advised to upgrade to these updated packages, which contain backported patches to correct these issues. All applications linked against t1lib 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

ProductVersionArch
Red Hat Storage2.0x86_64
Red Hat Storage for Public Cloud (via RHUI)2.0x86_64
Red Hat Gluster Storage Server for On-premise2.0x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.2x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.2i386
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for Power, big endian - Extended Update Support6.2ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support6.2s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.2x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.2i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - AUS6.2x86_64
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • t1lib-5.1.2-6.el6_2.1.ppc.rpm
  • t1lib-apps-5.1.2-6.el6_2.1.i686.rpm
  • t1lib-5.1.2-6.el6_2.1.ppc64.rpm
  • t1lib-5.1.2-6.el6_2.1.src.rpm
  • t1lib-5.1.2-6.el6_2.1.i686.rpm
  • t1lib-debuginfo-5.1.2-6.el6_2.1.s390x.rpm
  • t1lib-apps-5.1.2-6.el6_2.1.x86_64.rpm
  • t1lib-5.1.2-6.el6_2.1.s390.rpm
  • t1lib-devel-5.1.2-6.el6_2.1.s390x.rpm
  • t1lib-debuginfo-5.1.2-6.el6_2.1.ppc64.rpm
  • t1lib-devel-5.1.2-6.el6_2.1.s390.rpm
  • t1lib-static-5.1.2-6.el6_2.1.x86_64.rpm
  • t1lib-apps-5.1.2-6.el6_2.1.s390x.rpm
  • t1lib-apps-5.1.2-6.el6_2.1.ppc64.rpm
  • t1lib-5.1.2-6.el6_2.1.s390x.rpm
  • t1lib-static-5.1.2-6.el6_2.1.s390x.rpm
  • t1lib-static-5.1.2-6.el6_2.1.i686.rpm
  • t1lib-devel-5.1.2-6.el6_2.1.ppc64.rpm
  • t1lib-devel-5.1.2-6.el6_2.1.ppc.rpm
  • t1lib-debuginfo-5.1.2-6.el6_2.1.s390.rpm
  • t1lib-debuginfo-5.1.2-6.el6_2.1.i686.rpm
  • t1lib-5.1.2-6.el6_2.1.x86_64.rpm
  • t1lib-debuginfo-5.1.2-6.el6_2.1.ppc.rpm
  • t1lib-devel-5.1.2-6.el6_2.1.i686.rpm
  • t1lib-debuginfo-5.1.2-6.el6_2.1.x86_64.rpm
  • t1lib-devel-5.1.2-6.el6_2.1.x86_64.rpm
  • t1lib-static-5.1.2-6.el6_2.1.ppc64.rpm

Fixes

CVEs

References

Additional information