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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200602-01">
<title>GStreamer FFmpeg plugin: Heap-based buffer overflow</title>
<synopsis>
The GStreamer FFmpeg plugin is vulnerable to a buffer overflow that may be
exploited by attackers to execute arbitrary code.
</synopsis>
<product type="ebuild">gst-plugins-ffmpeg</product>
<announced>February 05, 2006</announced>
<revised>February 05, 2006: 01</revised>
<bug>119512</bug>
<access>remote</access>
<affected>
<package name="media-plugins/gst-plugins-ffmpeg" auto="yes" arch="*">
<unaffected range="ge">0.8.7-r1</unaffected>
<vulnerable range="lt">0.8.7-r1</vulnerable>
</package>
</affected>
<background>
<p>
The GStreamer FFmpeg plugin uses code from the FFmpeg library to
provide fast colorspace conversion and multimedia decoders to the
GStreamer open source media framework.
</p>
</background>
<description>
<p>
The GStreamer FFmpeg plugin contains derived code from the FFmpeg
library, which is vulnerable to a heap overflow in the
"avcodec_default_get_buffer()" function discovered by Simon Kilvington
(see GLSA 200601-06).
</p>
</description>
<impact type="normal">
<p>
A remote attacker could entice a user to run an application using
the GStreamer FFmpeg plugin on a maliciously crafted PIX_FMT_PAL8
format image file (like PNG images), possibly leading to the execution
of arbitrary code with the permissions of the user running the
application.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All GStreamer FFmpeg plugin users should upgrade to the latest
version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=media-plugins/gst-plugins-ffmpeg-0.8.7-r1&quot;</code>
</resolution>
<references>
<uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4048">CVE-2005-4048</uri>
<uri link="/security/en/glsa/glsa-200601-06.xml">GLSA 200601-06</uri>
</references>
<metadata tag="requester" timestamp="Sun, 29 Jan 2006 21:54:38 +0000">
DerCorny
</metadata>
<metadata tag="bugReady" timestamp="Tue, 31 Jan 2006 03:13:44 +0000">
adir
</metadata>
<metadata tag="submitter" timestamp="Wed, 01 Feb 2006 15:27:50 +0000">
DerCorny
</metadata>
</glsa>