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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200707-14">
  <title>tcpdump: Integer overflow</title>
  <synopsis>
    A vulnerability has been discovered in tcpdump, allowing for the execution
    of arbitrary code, possibly with root privileges.
  </synopsis>
  <product type="ebuild">tcpdump</product>
  <announced>2007-07-28</announced>
  <revised count="01">2007-07-28</revised>
  <bug>184815</bug>
  <access>remote</access>
  <affected>
    <package name="net-analyzer/tcpdump" auto="yes" arch="*">
      <unaffected range="ge">3.9.5-r3</unaffected>
      <vulnerable range="lt">3.9.5-r3</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    tcpdump is a tool for capturing and inspecting network traffic.
    </p>
  </background>
  <description>
    <p>
    mu-b from Digital Labs discovered that the return value of a snprintf()
    call is not properly checked before being used. This could lead to an
    integer overflow.
    </p>
  </description>
  <impact type="high">
    <p>
    A remote attacker could send specially crafted BGP packets on a network
    being monitored with tcpdump, possibly resulting in the execution of
    arbitrary code with the privileges of the user running tcpdump, which
    is usually root.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All tcpdump users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-analyzer/tcpdump-3.9.5-r3"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3798">CVE-2007-3798</uri>
  </references>
  <metadata tag="requester" timestamp="2007-07-14T22:01:53Z">
    p-y
  </metadata>
  <metadata tag="submitter" timestamp="2007-07-17T18:00:19Z">
    p-y
  </metadata>
  <metadata tag="bugReady" timestamp="2007-07-17T18:48:59Z">
    p-y
  </metadata>
</glsa>