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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200711-18">
  <title>Cpio: Buffer overflow</title>
  <synopsis>
    GNU cpio contains a buffer overflow vulnerability, possibly resulting in a
    Denial of Service.
  </synopsis>
  <product type="ebuild">cpio</product>
  <announced>2007-11-14</announced>
  <revised count="01">2007-11-14</revised>
  <bug>196978</bug>
  <access>remote</access>
  <affected>
    <package name="app-arch/cpio" auto="yes" arch="*">
      <unaffected range="ge">2.9-r1</unaffected>
      <vulnerable range="lt">2.9-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    GNU cpio copies files into or out of a cpio or tar archive.
    </p>
  </background>
  <description>
    <p>
    A buffer overflow vulnerability in the safer_name_suffix() function in
    GNU cpio has been discovered.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could entice a user to open a specially crafted
    archive file resulting in a stack-based buffer overflow, possibly
    crashing the application. It is disputed whether the execution of
    arbitrary code is possible.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All GNU cpio users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=app-arch/cpio-2.9-r1"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4476">CVE-2007-4476</uri>
  </references>
  <metadata tag="requester" timestamp="2007-11-07T19:52:13Z">
    p-y
  </metadata>
  <metadata tag="bugReady" timestamp="2007-11-07T20:48:37Z">
    p-y
  </metadata>
  <metadata tag="submitter" timestamp="2007-11-08T18:58:10Z">
    keytoaster
  </metadata>
</glsa>