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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200710-01">
<title>RPCSEC_GSS library: Buffer overflow</title>
A buffer overflow vulnerability has been discovered in librpcsecgss.
<product type="ebuild">librcpsecgss</product>
<announced>October 04, 2007</announced>
<revised>October 04, 2007: 01</revised>
<package name="net-libs/librpcsecgss" auto="yes" arch="*">
<unaffected range="ge">0.16</unaffected>
<vulnerable range="lt">0.16</vulnerable>
librpcsecgss is an implementation of RPCSEC_GSS for secure RPC
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.
<impact type="high">
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.
There is no known workaround at this time.
All librpcsecgss users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-libs/librpcsecgss-0.16&quot;</code>
<uri link="">CVE-2007-3999</uri>
<uri link="/security/en/glsa/glsa-200709-01.xml">GLSA-200709-01</uri>
<metadata tag="requester" timestamp="Sun, 09 Sep 2007 19:27:24 +0000">
<metadata tag="bugReady" timestamp="Sun, 09 Sep 2007 19:29:01 +0000">
<metadata tag="submitter" timestamp="Sat, 29 Sep 2007 15:36:52 +0000">