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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200712-04">
<title>Cairo: User-assisted execution of arbitrary code</title>
<synopsis>
Multiple integer overflows were discovered in Cairo, possibly leading to
the execution of arbitrary code.
</synopsis>
<product type="ebuild">cairo</product>
<announced>December 09, 2007</announced>
<revised>December 09, 2007: 01</revised>
<bug>200350</bug>
<access>remote</access>
<affected>
<package name="x11-libs/cairo" auto="yes" arch="*">
<unaffected range="ge">1.4.12</unaffected>
<vulnerable range="lt">1.4.12</vulnerable>
</package>
</affected>
<background>
<p>
Cairo is a 2D vector graphics library with cross-device output support.
</p>
</background>
<description>
<p>
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.
</p>
</description>
<impact type="normal">
<p>
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.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Cairo users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=x11-libs/cairo-1.4.12&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5503">CVE-2007-5503</uri>
</references>
<metadata tag="requester" timestamp="Tue, 04 Dec 2007 23:43:52 +0000">
rbu
</metadata>
<metadata tag="submitter" timestamp="Wed, 05 Dec 2007 01:36:20 +0000">
rbu
</metadata>
<metadata tag="bugReady" timestamp="Wed, 05 Dec 2007 01:36:55 +0000">
rbu
</metadata>
</glsa>