FreeType: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200905-05 / freetype
Release Date	May 24, 2009
Latest Revision	May 25, 2009: 02
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-libs/freetype	< 2.3.9-r1	>= 2.3.9-r1, < 2.0	All supported architectures

Related bugreports: #263032

Synopsis

Multiple integer overflows in FreeType might allow for the remote execution of arbitrary code or a Denial of Service.

2. Impact Information

Background

FreeType is a high-quality and portable font engine.

Description

Tavis Ormandy reported multiple integer overflows in the cff_charset_compute_cids() function in cff/cffload.c, sfnt/tccmap.c and the ft_smooth_render_generic() function in smooth/ftsmooth.c, possibly leading to heap or stack-based buffer overflows.

Impact

A remote attacker could entice a user or automated system to open a specially crafted font file, possibly resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All FreeType users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/freetype-2.3.9-r1"

4. References

CVE-2009-0946

Page updated May 24, 2009

Summary: This is a Gentoo Linux Security Advisory

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