<?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 ">=net-analyzer/snort-2.6.1.3"</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>