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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200703-01">
<title>Snort: Remote execution of arbitrary code</title>
<synopsis>
The Snort DCE/RPC preprocessor contains a buffer overflow that could result
in the remote execution of arbitrary code.
</synopsis>
<product type="ebuild">snort</product>
<announced>February 23, 2007</announced>
<revised>March 02, 2007: 02</revised>
<bug>167730</bug>
<access>remote</access>
<affected>
<package name="net-analyzer/snort" auto="yes" arch="*">
<unaffected range="ge">2.6.1.3</unaffected>
<vulnerable range="lt">2.6.1.3</vulnerable>
</package>
</affected>
<background>
<p>
Snort is a widely deployed intrusion detection program.
</p>
</background>
<description>
<p>
The Snort DCE/RPC preprocessor does not properly reassemble certain
types of fragmented SMB and DCE/RPC packets.
</p>
</description>
<impact type="high">
<p>
A remote attacker could send specially crafted fragmented SMB or
DCE/RPC packets, without the need to finish the TCP handshake, that
would trigger a stack-based buffer overflow while being reassembled.
This could lead to the execution of arbitrary code with the permissions
of the user running the Snort preprocessor.
</p>
</impact>
<workaround>
<p>
Disable the DCE/RPC processor by commenting the 'preprocessor dcerpc'
section in /etc/snort/snort.conf .
</p>
</workaround>
<resolution>
<p>
All Snort users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-analyzer/snort-2.6.1.3&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5276">CVE-2006-5276</uri>
</references>
<metadata tag="requester" timestamp="Fri, 23 Feb 2007 17:25:01 +0000">
falco
</metadata>
<metadata tag="submitter" timestamp="Tue, 27 Feb 2007 18:06:20 +0000">
falco
</metadata>
</glsa>