glsa-201111-11.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201111-11">
  <title>GNU Tar: User-assisted execution of arbitrary code</title>
  <synopsis>A buffer overflow flaw in GNU Tar could result in execution of
    arbitrary code or a Denial of Service.
  </synopsis>
  <product type="ebuild">tar</product>
  <announced>2011-11-20</announced>
  <revised count="1">2011-11-20</revised>
  <bug>313333</bug>
  <access>remote</access>
  <affected>
    <package name="app-arch/tar" auto="yes" arch="*">
      <unaffected range="ge">1.23</unaffected>
      <vulnerable range="lt">1.23</vulnerable>
    </package>
  </affected>
  <background>
    <p>GNU Tar is a utility to create archives as well as add and extract files
      from archives.
    </p>
  </background>
  <description>
    <p>GNU Tar is vulnerable to a boundary error in the rmt_read__ function in
      lib/rtapelib.c, which could cause a heap-based buffer overflow. 
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could entice the user to load a specially crafted
      archive, possibly resulting in the execution of arbitrary code or a
      Denial of Service.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All GNU Tar users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-arch/tar-1.23"
    </code>
    
    <p>NOTE: This is a legacy GLSA. Updates for all affected architectures are
      available since July 18, 2010. It is likely that your system is already
      no longer affected by this issue.
    </p>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0624">CVE-2010-0624</uri>
  </references>
  <metadata timestamp="2011-10-07T23:37:10Z" tag="requester">
    underling
  </metadata>
  <metadata timestamp="2011-11-20T17:56:56Z" tag="submitter">ackle</metadata>
</glsa>