glsa-200711-13.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200711-13">
  <title>3proxy: Denial of service</title>
  <synopsis>
    A vulnerability has been discovered in 3proxy, possibly resulting in a
    Denial of Service.
  </synopsis>
  <product type="ebuild">3proxy</product>
  <announced>2007-11-08</announced>
  <revised count="01">2007-11-08</revised>
  <bug>196772</bug>
  <access>remote</access>
  <affected>
    <package name="net-proxy/3proxy" auto="yes" arch="*">
      <unaffected range="ge">0.5.3j</unaffected>
      <vulnerable range="lt">0.5.3j</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    3proxy is a really tiny cross-platform proxy servers set, including
    HTTP, HTTPS, FTP, SOCKS and POP3 support.
    </p>
  </background>
  <description>
    <p>
    3proxy contains a double free vulnerability in the ftpprchild()
    function, which frees param-&gt;hostname and calls the parsehostname()
    function, which in turn attempts to free param-&gt;hostname again.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could send a specially crafted request to the proxy,
    possibly resulting in a Denial of Service. Under typical configuration,
    the scope of this vulnerability is limited to the local network.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All 3proxy users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-proxy/3proxy-0.5.3j"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5622">CVE-2007-5622</uri>
  </references>
  <metadata tag="requester" timestamp="2007-11-02T23:15:07Z">
    p-y
  </metadata>
  <metadata tag="submitter" timestamp="2007-11-03T12:02:00Z">
    keytoaster
  </metadata>
  <metadata tag="bugReady" timestamp="2007-11-04T14:26:02Z">
    rbu
  </metadata>
</glsa>