[ GLSA 200905-05 ] FreeType: Multiple vulnerabilities

2009-05-2500:00:00

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Gentoo Linux Security Advisory GLSA 200905-05

                                        http://security.gentoo.org/

Severity: Normal
Title: FreeType: Multiple vulnerabilities
Date: May 24, 2009
Bugs: #263032
ID: 200905-05

Synopsis

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

Background

FreeType is a high-quality and portable font engine.

Affected packages

-------------------------------------------------------------------
 Package              /  Vulnerable  /                  Unaffected
-------------------------------------------------------------------

1 media-libs/freetype < 2.3.9-r1 >= 2.3.9-r1

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.

Workaround

There is no known workaround at this time.

Resolution

All FreeType users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=media-libs/freetype-2.3.9-r1&quot;

References

[ 1 ] CVE-2009-0946
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0946

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200905-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.