glsa-201402-26.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201402-26">
  <title>libssh: Arbitrary code execution</title>
  <synopsis>Multiple vulnerabilities have been found in libssh, allowing
    attackers to execute arbitrary code or cause Denial of Service.
  </synopsis>
  <product type="ebuild">libssh</product>
  <announced>February 21, 2014</announced>
  <revised>February 21, 2014: 1</revised>
  <bug>444147</bug>
  <access>remote</access>
  <affected>
    <package name="net-libs/libssh" auto="yes" arch="*">
      <unaffected range="ge">0.5.3</unaffected>
      <vulnerable range="lt">0.5.3</vulnerable>
    </package>
  </affected>
  <background>
    <p>libssh is a C library providing SSHv2 and SSHv1.</p>
  </background>
  <description>
    <p>Multiple buffer overflow, double free, and integer overflow
      vulnerabilities have been discovered in libssh.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could possibly execute arbitrary code with the
      privileges of the process or cause a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All libssh users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=net-libs/libssh-0.5.3"
    </code>
  </resolution>
  <references>
    <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4559">CVE-2012-4559</uri>
    <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4560">CVE-2012-4560</uri>
    <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4561">CVE-2012-4561</uri>
    <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4562">CVE-2012-4562</uri>
    <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6063">CVE-2012-6063</uri>
  </references>
  <metadata tag="requester" timestamp="Mon, 03 Dec 2012 11:55:23 +0000">ackle</metadata>
  <metadata tag="submitter" timestamp="Fri, 21 Feb 2014 15:44:25 +0000">ackle</metadata>
</glsa>