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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200711-18">
<title>Cpio: Buffer overflow</title>
<synopsis>
GNU cpio contains a buffer overflow vulnerability, possibly resulting in a
Denial of Service.
</synopsis>
<product type="ebuild">cpio</product>
<announced>2007-11-14</announced>
<revised count="01">2007-11-14</revised>
<bug>196978</bug>
<access>remote</access>
<affected>
<package name="app-arch/cpio" auto="yes" arch="*">
<unaffected range="ge">2.9-r1</unaffected>
<vulnerable range="lt">2.9-r1</vulnerable>
</package>
</affected>
<background>
<p>
GNU cpio copies files into or out of a cpio or tar archive.
</p>
</background>
<description>
<p>
A buffer overflow vulnerability in the safer_name_suffix() function in
GNU cpio has been discovered.
</p>
</description>
<impact type="normal">
<p>
A remote attacker could entice a user to open a specially crafted
archive file resulting in a stack-based buffer overflow, possibly
crashing the application. It is disputed whether the execution of
arbitrary code is possible.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All GNU cpio users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/cpio-2.9-r1"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4476">CVE-2007-4476</uri>
</references>
<metadata tag="requester" timestamp="2007-11-07T19:52:13Z">
p-y
</metadata>
<metadata tag="bugReady" timestamp="2007-11-07T20:48:37Z">
p-y
</metadata>
<metadata tag="submitter" timestamp="2007-11-08T18:58:10Z">
keytoaster
</metadata>
</glsa>
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