68 lines
2.1 KiB
XML
68 lines
2.1 KiB
XML
|
<?xml version="1.0" encoding="utf-8"?>
|
||
|
|
<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
|
||
|
|
<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
|
||
|
|
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
|
||
|
|
|
||
|
|
<glsa id="200702-03">
|
||
|
|
<title>Snort: Denial of Service</title>
|
||
|
|
<synopsis>
|
||
|
|
Snort contains a vulnerability in the rule matching algorithm that could
|
||
|
|
result in a Denial of Service.
|
||
|
|
</synopsis>
|
||
|
|
<product type="ebuild">snort</product>
|
||
|
|
<announced>February 13, 2007</announced>
|
||
|
|
<revised>February 13, 2007: 01</revised>
|
||
|
|
<bug>161632</bug>
|
||
|
|
<access>remote</access>
|
||
|
|
<affected>
|
||
|
|
<package name="net-analyzer/snort" auto="yes" arch="*">
|
||
|
|
<unaffected range="ge">2.6.1.2</unaffected>
|
||
|
|
<vulnerable range="lt">2.6.1.2</vulnerable>
|
||
|
|
</package>
|
||
|
|
</affected>
|
||
|
|
<background>
|
||
|
|
<p>
|
||
|
|
Snort is a widely deployed intrusion detection program.
|
||
|
|
</p>
|
||
|
|
</background>
|
||
|
|
<description>
|
||
|
|
<p>
|
||
|
|
Randy Smith, Christian Estan and Somesh Jha discovered that the rule
|
||
|
|
matching algorithm of Snort can be exploited in a way known as a
|
||
|
|
"backtracking attack" to perform numerous time-consuming operations.
|
||
|
|
</p>
|
||
|
|
</description>
|
||
|
|
<impact type="normal">
|
||
|
|
<p>
|
||
|
|
A remote attacker could send specially crafted network packets, which
|
||
|
|
would result in the cessation of the detections and the consumption of
|
||
|
|
the CPU resources.
|
||
|
|
</p>
|
||
|
|
</impact>
|
||
|
|
<workaround>
|
||
|
|
<p>
|
||
|
|
There is no known workaround at this time.
|
||
|
|
</p>
|
||
|
|
</workaround>
|
||
|
|
<resolution>
|
||
|
|
<p>
|
||
|
|
All Snort users should upgrade to the latest version:
|
||
|
|
</p>
|
||
|
|
<code>
|
||
|
|
# emerge --sync
|
||
|
|
# emerge --ask --oneshot --verbose ">=net-analyzer/snort-2.6.1.2"</code>
|
||
|
|
</resolution>
|
||
|
|
<references>
|
||
|
|
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6931">CVE-2006-6931</uri>
|
||
|
|
</references>
|
||
|
|
<metadata tag="requester" timestamp="Sat, 10 Feb 2007 19:01:49 +0000">
|
||
|
|
falco
|
||
|
|
</metadata>
|
||
|
|
<metadata tag="bugReady" timestamp="Mon, 12 Feb 2007 22:41:30 +0000">
|
||
|
|
falco
|
||
|
|
</metadata>
|
||
|
|
<metadata tag="submitter" timestamp="Mon, 12 Feb 2007 23:29:42 +0000">
|
||
|
|
falco
|
||
|
|
</metadata>
|
||
|
|
</glsa>
|