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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200406-06">
<title>CVS: additional DoS and arbitrary code execution vulnerabilities</title>
<synopsis>
Several serious new vulnerabilities have been found in CVS, which may allow
an attacker to remotely compromise a CVS server.
</synopsis>
<product type="ebuild">CVS</product>
<announced>June 10, 2004</announced>
<revised>June 10, 2004: 01</revised>
<bug>53408</bug>
<access>remote</access>
<affected>
<package name="dev-util/cvs" auto="yes" arch="*">
<unaffected range="ge">1.11.17</unaffected>
<vulnerable range="le">1.11.16-r1</vulnerable>
</package>
</affected>
<background>
<p>
CVS (Concurrent Versions System) is an open-source network-transparent
version control system. It contains both a client utility and a server.
</p>
</background>
<description>
<p>
A team audit of the CVS source code performed by Stefan Esser and Sebastian
Krahmer resulted in the discovery of several remotely exploitable
vulnerabilities including:
</p>
<ul>
<li>no-null-termination of &quot;Entry&quot; lines</li>
<li>error_prog_name &quot;double-free()&quot;</li>
<li>Argument integer overflow</li>
<li>serve_notify() out of bounds writes</li>
</ul>
</description>
<impact type="high">
<p>
An attacker could use these vulnerabilities to cause a Denial of Service or
execute arbitrary code with the permissions of the user running cvs.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time. All users are advised to upgrade
to the latest available version of CVS.
</p>
</workaround>
<resolution>
<p>
All CVS users should upgrade to the latest stable version:
</p>
<code>
# emerge sync
# emerge -pv ">=dev-util/cvs-1.11.17"
# emerge ">=dev-util/cvs-1.11.17"</code>
</resolution>
<references>
<uri link="http://security.e-matters.de/advisories/092004.html">E-matters Advisory 09/2004</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0414">CAN-2004-0414</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0416">CAN-2004-0416</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0417">CAN-2004-0417</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0418">CAN-2004-0418</uri>
</references>
<metadata tag="submitter">
jaervosz
</metadata>
</glsa>