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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200710-01">
<title>RPCSEC_GSS library: Buffer overflow</title>
<synopsis>
A buffer overflow vulnerability has been discovered in librpcsecgss.
</synopsis>
<product type="ebuild">librcpsecgss</product>
<announced>October 04, 2007</announced>
<revised>October 04, 2007: 01</revised>
<bug>191479</bug>
<access>remote</access>
<affected>
<package name="net-libs/librpcsecgss" auto="yes" arch="*">
<unaffected range="ge">0.16</unaffected>
<vulnerable range="lt">0.16</vulnerable>
</package>
</affected>
<background>
<p>
librpcsecgss is an implementation of RPCSEC_GSS for secure RPC
communications.
</p>
</background>
<description>
<p>
A stack based buffer overflow has been discovered in the
svcauth_gss_validate() function in file lib/rpc/svc_auth_gss.c when
processing an overly long string in a RPC message.
</p>
</description>
<impact type="high">
<p>
A remote attacker could send a specially crafted RPC request to an
application relying on this library, e.g NFSv4 or Kerberos
(GLSA-200709-01), resulting in 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 librpcsecgss users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-libs/librpcsecgss-0.16&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3999">CVE-2007-3999</uri>
<uri link="/security/en/glsa/glsa-200709-01.xml">GLSA-200709-01</uri>
</references>
<metadata tag="requester" timestamp="Sun, 09 Sep 2007 19:27:24 +0000">
jaervosz
</metadata>
<metadata tag="bugReady" timestamp="Sun, 09 Sep 2007 19:29:01 +0000">
jaervosz
</metadata>
<metadata tag="submitter" timestamp="Sat, 29 Sep 2007 15:36:52 +0000">
p-y
</metadata>
</glsa>