Joined: 12 May 2004
|Posted: Tue Jun 24, 2008 1:26 am Post subject: [ GLSA 200806-10 ] FreeType: User-assisted execution of arbi
|Gentoo Linux Security Advisory
Title: FreeType: User-assisted execution of arbitrary code (GLSA 200806-10)
Date: June 23, 2008
Updated: May 28, 2009
Font parsing vulnerabilities in FreeType might lead to user-assisted execution of arbitrary code.
FreeType is a font rendering library for TrueType Font (TTF) and Printer Font Binary (PFB).
Vulnerable: < 2.3.6
Unaffected: >= 2.3.6
Unaffected: >= 1.4_pre20080316-r1 < 1.5
Architectures: All supported architectures
Regenrecht reported multiple vulnerabilities in FreeType via iDefense:
- An integer overflow when parsing values in the Private dictionary table in a PFB file, leading to a heap-based buffer overflow (CVE-2008-1806).
- An invalid free() call related to parsing an invalid "number of axes" field in a PFB file (CVE-2008-1807).
- Multiple off-by-one errors when parsing PBF and TTF files, leading to heap-based buffer overflows (CVE-2008-1808).
A remote attacker could entice a user to open a specially crafted TTF or PBF file, possibly resulting in the execution of arbitrary code with the privileges of the user running an application linked against FreeType (such as the X.org X server, running as root).
There is no known workaround at this time.
All FreeType users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/freetype-2.3.6"
Last edited by GLSA on Fri May 29, 2009 4:18 am; edited 2 times in total