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Red Hat Enterprise Linux RHSA-2011:1402-01 Critical: Freetype Input Flaw

red hat
Calendar Grey October 25, 2011
Dist Redhat Esm H88
Essential freetype security patch for Red Hat Enterprise Linux 4, 5, 6 resolves significant vulnerabilities and risks.
Updated freetype packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4, 5, and 6

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

FreeType is a free, high-quality, portable font engine that can open and manage font files. It also loads, hints, and renders individual glyphs efficiently. The freetype packages for Red Hat Enterprise Linux 4 provide both the FreeType 1 and FreeType 2 font engines. The freetype packages for Red Hat Enterprise Linux 5 and 6 provide only the FreeType 2 font engine.
Multiple input validation flaws were found in the way FreeType processed bitmap font files. If a specially-crafted font file was loaded by an application linked against FreeType, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-3256)
Note: These issues only affected the FreeType 2 font engine.
Users are advised to upgrade to these updated packages, which contain a backported patch to correct these issues. The X server must be restarted (log out, then log back in) for this update to take effect.

Topics%20covered

Topics Covered

security advisory Red Hat critical security fix input validation freetype

References

https://access.redhat.com/security/cve/CVE-2011-3256 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: freetype-2.1.9-20.el4.i386.rpm freetype-debuginfo-2.1.9-20.el4.i386.rpm freetype-demos-2.1.9-20.el4.i386.rpm freetype-devel-2.1.9-20.el4.i386.rpm freetype-utils-2.1.9-20.el4.i386.rpm
ia64: freetype-2.1.9-20.el4.i386.rpm freetype-2.1.9-20.el4.ia64.rpm freetype-debuginfo-2.1.9-20.el4.i386.rpm freetype-debuginfo-2.1.9-20.el4.ia64.rpm freetype-demos-2.1.9-20.el4.ia64.rpm freetype-devel-2.1.9-20.el4.ia64.rpm freetype-utils-2.1.9-20.el4.ia64.rpm
ppc: freetype-2.1.9-20.el4.ppc.rpm freetype-2.1.9-20.el4.ppc64.rpm freetype-debuginfo-2.1.9-20.el4.ppc.rpm freetype-debuginfo-2.1.9-20.el4.ppc64.rpm freetype-demos-2.1.9-20.el4.ppc.rpm freetype-devel-2.1.9-20.el4.ppc.rpm freetype-utils-2.1.9-20.el4.ppc.rpm
s390: freetype-2.1.9-20.el4.s390.rpm freetype-debuginfo-2.1.9-20.el4.s390.rpm freetype-demos-2.1.9-20.el4.s390.rpm freetype-devel-2.1.9-20.el4.s390.rpm freetype-utils-2.1.9-20.el4.s390.rpm
s390x: freetype-2.1.9-20.el4.s390.rpm freetype-2.1.9-20.el4.s390x.rpm freetype-debuginfo-2.1.9-20.el4.s390.rpm freetype-debuginfo-2.1.9-20.el4.s390x.rpm freetype-demos-2.1.9-20.el4.s390x.rpm freetype-devel-2.1.9-20.el4.s390x.rpm freetype-utils-2.1.9-20.el4.s390x.rpm
x86_64: freetype-2.1.9-20.el4.i386.rpm freetype-2.1.9-20.el4.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:1402-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:1402.html
Issue date: 2011-10-25

Topic

Updated freetype packages that fix multiple security issues are nowavailable for Red Hat Enterprise Linux 4, 5, and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat critical security fix input validation freetype

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

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

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, 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 HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

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

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

746226 - CVE-2011-3256 FreeType FT_Bitmap_New integer overflow to buffer overflow, FreeType TT_Vary_Get_Glyph_Deltas improper input validation

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