glsa-200805-05.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200805-05">
  <title>Wireshark: Denial of Service</title>
  <synopsis>
    Multiple Denial of Service vulnerabilities have been discovered in
    Wireshark.
  </synopsis>
  <product type="ebuild">wireshark</product>
  <announced>May 07, 2008</announced>
  <revised>May 07, 2008: 01</revised>
  <bug>215276</bug>
  <access>remote</access>
  <affected>
    <package name="net-analyzer/wireshark" auto="yes" arch="*">
      <unaffected range="ge">1.0.0</unaffected>
      <vulnerable range="lt">1.0.0</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Wireshark is a network protocol analyzer with a graphical front-end.
    </p>
  </background>
  <description>
    <p>
    Errors exist in:
    </p>
    <ul>
    <li>
    the X.509sat dissector because of an uninitialized variable and the
    Roofnet dissector because a NULL pointer may be passed to the
    g_vsnprintf() function (CVE-2008-1561).</li>
    <li>
    the LDAP dissector because a NULL pointer may be passed to the
    ep_strdup_printf() function (CVE-2008-1562).</li>
    <li>
    the SCCP dissector because it does not reset a pointer once the packet
    has been processed (CVE-2008-1563).</li>
    </ul>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could exploit these vulnerabilities by sending a
    malformed packet or enticing a user to read a malformed packet trace
    file, causing a Denial of Service.
    </p>
  </impact>
  <workaround>
    <p>
    Disable the X.509sat, Roofnet, LDAP, and SCCP dissectors.
    </p>
  </workaround>
  <resolution>
    <p>
    All Wireshark users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=net-analyzer/wireshark-1.0.0&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1561">CVE-2008-1561</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1562">CVE-2008-1562</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1563">CVE-2008-1563</uri>
  </references>
  <metadata tag="requester" timestamp="Tue, 29 Apr 2008 13:11:47 +0000">
    vorlon
  </metadata>
  <metadata tag="bugReady" timestamp="Tue, 29 Apr 2008 13:12:26 +0000">
    vorlon
  </metadata>
  <metadata tag="submitter" timestamp="Tue, 29 Apr 2008 15:31:30 +0000">
    mfleming
  </metadata>
</glsa>