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RHEL: RHSA-2010:0607-02 Critical: Freetype Stack Overflow Exploit

red hat
Calendar Grey August 5, 2010
Dist Redhat Esm H88
Recent updates to freetype packages for CentOS address two significant security vulnerabilities crucial for safeguarding system integrity.
Updated freetype packages that fix two security issues are now available for Red Hat Enterprise Linux 3, 4, and 5

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

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 3 and 4 provide both the FreeType 1 and FreeType 2 font engines. The freetype packages for Red Hat Enterprise Linux 5 provide only the FreeType 2 font engine.
Two stack overflow flaws were found in the way the FreeType font engine processed certain Compact Font Format (CFF) character strings (opcodes). If a user loaded a specially-crafted font file with an application linked against FreeType, it could cause the application to crash or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1797)
Red Hat would like to thank Braden Thomas of the Apple Product Security team for reporting these issues.
Note: CVE-2010-1797 only affects 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.

References

https://access.redhat.com/security/cve/CVE-2010-1797 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AS version 3:
Source:
i386: freetype-2.1.4-16.el3.i386.rpm freetype-debuginfo-2.1.4-16.el3.i386.rpm freetype-devel-2.1.4-16.el3.i386.rpm
ia64: freetype-2.1.4-16.el3.i386.rpm freetype-2.1.4-16.el3.ia64.rpm freetype-debuginfo-2.1.4-16.el3.i386.rpm freetype-debuginfo-2.1.4-16.el3.ia64.rpm freetype-devel-2.1.4-16.el3.ia64.rpm
ppc: freetype-2.1.4-16.el3.ppc.rpm freetype-2.1.4-16.el3.ppc64.rpm freetype-debuginfo-2.1.4-16.el3.ppc.rpm freetype-debuginfo-2.1.4-16.el3.ppc64.rpm freetype-devel-2.1.4-16.el3.ppc.rpm
s390: freetype-2.1.4-16.el3.s390.rpm freetype-debuginfo-2.1.4-16.el3.s390.rpm freetype-devel-2.1.4-16.el3.s390.rpm
s390x: freetype-2.1.4-16.el3.s390.rpm freetype-2.1.4-16.el3.s390x.rpm freetype-debuginfo-2.1.4-16.el3.s390.rpm freetype-debuginfo-2.1.4-16.el3.s390x.rpm freetype-devel-2.1.4-16.el3.s390x.rpm
x86_64: freetype-2.1.4-16.el3.i386.rpm freetype-2.1.4-16.el3.x86_64.rpm freetype-debuginfo-2.1.4-16.el3.i386.rpm freetype-debuginfo-2.1.4-16.el3.x86_64.rpm freetype-devel-2.1.4-16.el3.x86_64.rpm
Red Hat Desktop version 3:
Source:
i386: freetype-2.1.4-16.el3.i386.rpm freetype-debuginfo-2.1.4-16.el3.i386.rpm freetype-devel-2.1.4-16.el3.i386.rpm
x86_64: freetype-2.1.4-16.el3.i386.rpm freetype-2.1.4-16.el3.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2010:0607-02
Product: Red Hat Enterprise Linux
Issue date: 2010-08-05

Topic

Updated freetype packages that fix two security issues are now availablefor Red Hat Enterprise Linux 3, 4, and 5.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.

Relevant Releases Architectures

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

Red Hat Desktop version 3 - i386, x86_64

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

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, 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 version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64

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

Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

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

Bugs Fixed

621144 - CVE-2010-1797 FreeType: Multiple stack overflows by processing CFF opcodes

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