glsa-200606-15.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200606-15">
  <title>Asterisk: IAX2 video frame buffer overflow</title>
  <synopsis>
    Asterisk contains a bug in the IAX2 channel driver making it vulnerable to
    the remote execution of arbitrary code.
  </synopsis>
  <product type="ebuild">asterisk</product>
  <announced>2006-06-14</announced>
  <revised count="01">2006-06-14</revised>
  <bug>135680</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/asterisk" auto="yes" arch="*">
      <unaffected range="ge">1.0.11_p1</unaffected>
      <vulnerable range="lt">1.0.11_p1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Asterisk is an open source implementation of a telephone private branch
    exchange (PBX).
    </p>
  </background>
  <description>
    <p>
    Asterisk fails to properly check the length of truncated video frames
    in the IAX2 channel driver which results in a buffer overflow.
    </p>
  </description>
  <impact type="high">
    <p>
    An attacker could exploit this vulnerability by sending a specially
    crafted IAX2 video stream resulting in the execution of arbitrary code
    with the permissions of the user running Asterisk.
    </p>
  </impact>
  <workaround>
    <p>
    Disable public IAX2 support.
    </p>
  </workaround>
  <resolution>
    <p>
    All Asterisk users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-misc/asterisk-1.0.11_p1"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2898">CVE-2006-2898</uri>
    <uri link="https://www.coresecurity.com/common/showdoc.php?idx=547&amp;idxseccion=10">Corelabs Asterisk PBX truncated video frame vulnerability advisory</uri>
  </references>
  <metadata tag="requester" timestamp="2006-06-08T10:46:16Z">
    falco
  </metadata>
  <metadata tag="submitter" timestamp="2006-06-09T08:21:48Z">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="2006-06-14T09:36:11Z">
    jaervosz
  </metadata>
</glsa>