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Gentoo Linux Security Advisory
GLSA 200712-24
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g/
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Severity: Normal
Title: AMD64 x86 emulation GTK+ library: User-assisted
execution of
arbitrary code
Date: December 30, 2007
Bugs: #201860
ID: 200712-24
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Synopsis
========
Multiple integer overflow vulnerabilities in the AMD64 x86
emulation
GTK+ libraries may result in the execution of arbitrary code
in
applications using Cairo.
Background
==========
Cairo is a 2D vector graphics library with cross-device
output support.
The AMD64 x86 emulation GTK+ library packages Cairo
libraries for 32bit
x86 emulation on AMD64.
Affected packages
=================
------------------------------------------------------------
-------
Package / Vulnerable /
Unaffected
------------------------------------------------------------
-------
1 emul-linux-x86-gtklibs < 20071214
>= 20071214
------------------------------------------------------------
-------
# Package 1 only applies to AMD64 users.
Description
===========
The Cairo versions used by the AMD64 x86 emulation GTK+
libraries were
vulnerable to integer overflow vulnerabilities (GLSA
200712-04).
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 AMD64 x86 emulation GTK+ library users should upgrade to
the latest
version:
# emerge --sync
# emerge -a -1 -v
">=app-emulation/emul-linux-x86-gtklibs-20071214&quo
t;
References
==========
[ 1 ] GLSA 200712-04
http://www.gentoo.org/security/en/glsa/glsa-200712-04.x
ml
Availability
============
This GLSA and any updates to it are available for viewing
at
the Gentoo Security Website:
ht
tp://security.gentoo.org/glsa/glsa-200712-24.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
http://bugs.gentoo.org.
License
=======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://
creativecommons.org/licenses/by-sa/2.5
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