glsa-201209-15.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201209-15">
  <title>Asterisk: Multiple vulnerabilities</title>
  <synopsis>Multiple vulnerabilities have been found in Asterisk, the worst of
    which may allow execution of arbitrary code.
  </synopsis>
  <product type="ebuild">asterisk</product>
  <announced>2012-09-26</announced>
  <revised count="1">2012-09-26</revised>
  <bug>425050</bug>
  <bug>433750</bug>
  <access>remote</access>
  <affected>
    <package name="net-misc/asterisk" auto="yes" arch="*">
      <unaffected range="ge">1.8.15.1</unaffected>
      <vulnerable range="lt">1.8.15.1</vulnerable>
    </package>
  </affected>
  <background>
    <p>Asterisk is an open source telephony engine and toolkit.</p>
  </background>
  <description>
    <p>Multiple vulnerabilities have been found in Asterisk:</p>
    
    <ul>
      <li>An error in manager.c allows shell access (CVE-2012-2186).</li>
      <li>An error in Asterisk could cause all RTP ports to be exhausted
        (CVE-2012-3812).
      </li>
      <li>A double-free error could occur when two parties attempt to
        manipulate the same voicemail account simultaneously (CVE-2012-3863).
      </li>
      <li>Asterisk does not properly implement certain ACL rules
        (CVE-2012-4737).
      </li>
    </ul>
  </description>
  <impact type="normal">
    <p>A remote, authenticated attacker could execute arbitrary code with the
      privileges of the process, cause a Denial of Service condition, or bypass
      outbound call restrictions.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</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-1.8.15.1"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2186">CVE-2012-2186</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3812">CVE-2012-3812</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3863">CVE-2012-3863</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4737">CVE-2012-4737</uri>
  </references>
  <metadata tag="requester" timestamp="2012-08-14T15:47:40Z">
    underling
  </metadata>
  <metadata tag="submitter" timestamp="2012-09-26T21:43:31Z">ackle</metadata>
</glsa>