glsa-200508-05.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200508-05">
  <title>Heartbeat: Insecure temporary file creation</title>
  <synopsis>
    Heartbeat is vulnerable to symlink attacks, potentially allowing a local
    user to overwrite arbitrary files.
  </synopsis>
  <product type="ebuild">Heartbeat</product>
  <announced>2005-08-07</announced>
  <revised count="01">2005-08-07</revised>
  <bug>97175</bug>
  <access>local</access>
  <affected>
    <package name="sys-cluster/heartbeat" auto="yes" arch="*">
      <unaffected range="ge">1.2.3-r1</unaffected>
      <vulnerable range="lt">1.2.3-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Heartbeat is a component of the High-Availability Linux project.
    It it used to perform death-of-node detection, communications and
    cluster management.
    </p>
  </background>
  <description>
    <p>
    Eric Romang has discovered that Heartbeat insecurely creates
    temporary files with predictable filenames.
    </p>
  </description>
  <impact type="normal">
    <p>
    A local attacker could create symbolic links in the temporary file
    directory, pointing to a valid file somewhere on the filesystem. When a
    vulnerable script is executed, this could lead to the file being
    overwritten with the rights of the user running the affected
    application.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Heartbeat users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=sys-cluster/heartbeat-1.2.3-r1"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2231">CAN-2005-2231</uri>
  </references>
  <metadata tag="requester" timestamp="2005-08-05T07:37:14Z">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="2005-08-05T14:33:59Z">
    formula7
  </metadata>
  <metadata tag="bugReady" timestamp="2005-08-05T14:54:26Z">
    formula7
  </metadata>
</glsa>