glsa-200406-06.xml


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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>