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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200710-04">
<title>libsndfile: Buffer overflow</title>
<synopsis>
A buffer overflow vulnerability has been discovered in libsndfile.
</synopsis>
<product type="ebuild">libsndfile</product>
<announced>October 07, 2007</announced>
<revised>October 07, 2007: 01</revised>
<bug>192834</bug>
<access>remote</access>
<affected>
<package name="media-libs/libsndfile" auto="yes" arch="*">
<unaffected range="ge">1.0.17-r1</unaffected>
<vulnerable range="lt">1.0.17-r1</vulnerable>
</package>
</affected>
<background>
<p>
libsndfile is a library for reading and writing various formats of
audio files including WAV and FLAC.
</p>
</background>
<description>
<p>
Robert Buchholz of the Gentoo Security team discovered that the
flac_buffer_copy() function does not correctly handle FLAC streams with
variable block sizes which leads to a heap-based buffer overflow
(CVE-2007-4974).
</p>
</description>
<impact type="normal">
<p>
A remote attacker could exploit this vulnerability by enticing a user
to open a specially crafted FLAC file or network stream with an
application using libsndfile. This might lead to the execution of
arbitrary code with privileges of the user playing the file.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All libsndfile users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=media-libs/libsndfile-1.0.17-r1&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4974">CVE-2007-4974</uri>
</references>
<metadata tag="requester" timestamp="Sat, 06 Oct 2007 23:14:31 +0000">
p-y
</metadata>
<metadata tag="submitter" timestamp="Sun, 07 Oct 2007 18:26:17 +0000">
rbu
</metadata>
<metadata tag="bugReady" timestamp="Sun, 07 Oct 2007 19:16:11 +0000">
p-y
</metadata>
</glsa>