GLSA 200712-04: Cairo: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	Cairo: User-assisted execution of arbitrary code
Date:	12/09/2007
Bugs:	#200350
ID:	200712-04

Synopsis

Multiple integer overflows were discovered in Cairo, possibly leading to the execution of arbitrary code.

Background

Cairo is a 2D vector graphics library with cross-device output support.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
x11-libs/cairo	< 1.4.12	>= 1.4.12	All supported architectures

Description

Multiple integer overflows were reported, one of which Peter Valchev (Google Security) found to be leading to a heap-based buffer overflow in the cairo_image_surface_create_from_png() function that processes PNG images.

Impact

A remote attacker could entice a user to view or process a specially crafted PNG image file in an application linked against Cairo, possibly leading to the execution of arbitrary code with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All Cairo users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-libs/cairo-1.4.12"

References

CVE-2007-5503

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200712-04.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 security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.