glsa-201405-19.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201405-19">
  <title>MCrypt: User-assisted execution of arbitrary code</title>
  <synopsis>Multiple vulnerabilities have been found in MCrypt, allowing
    attackers to execute arbitrary code or cause Denial of Service.
  </synopsis>
  <product type="ebuild">mcrypt</product>
  <announced>2014-05-18</announced>
  <revised count="1">2014-05-18</revised>
  <bug>434112</bug>
  <bug>440778</bug>
  <access>remote</access>
  <affected>
    <package name="app-crypt/mcrypt" auto="yes" arch="*">
      <unaffected range="ge">2.6.8-r2</unaffected>
      <vulnerable range="lt">2.6.8-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>MCrypt is a replacement of the old unix crypt(1) utility.</p>
  </background>
  <description>
    <p>Multiple vulnerabilities have been discovered in MCrypt:</p>
    
    <ul>
      <li>A boundary error in MCrypt could cause a stack-based buffer overflow
        (CVE-2012-4409).
      </li>
      <li>MCrypt contains multiple format string errors (CVE-2012-4426).</li>
      <li>MCrypt does not properly handle long file names, which could cause a
        stack-based buffer overflow (CVE-2012-4527). 
      </li>
    </ul>
  </description>
  <impact type="normal">
    <p>A remote attacker could entice a user to open a specially crafted file
      using MCrypt, possibly resulting in execution of arbitrary code with the
      privileges of the process or a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All MCrypt users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-crypt/mcrypt-2.6.8-r2"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4409">CVE-2012-4409</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4426">CVE-2012-4426</uri>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4527">CVE-2012-4527</uri>
  </references>
  <metadata tag="requester" timestamp="2013-01-01T21:30:40Z">ackle</metadata>
  <metadata tag="submitter" timestamp="2014-05-18T11:39:31Z">ackle</metadata>
</glsa>