glsa-200710-23.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200710-23">
  <title>Star: Directory traversal vulnerability</title>
  <synopsis>
    A directory traversal vulnerability has been discovered in Star.
  </synopsis>
  <product type="ebuild">star</product>
  <announced>October 22, 2007</announced>
  <revised>October 22, 2007: 01</revised>
  <bug>189690</bug>
  <access>remote</access>
  <affected>
    <package name="app-arch/star" auto="yes" arch="*">
      <unaffected range="ge">1.5_alpha84</unaffected>
      <vulnerable range="lt">1.5_alpha84</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    The Star program provides the ability to create and extract tar
    archives.
    </p>
  </background>
  <description>
    <p>
    Robert Buchholz of the Gentoo Security team discovered a directory
    traversal vulnerability in the has_dotdot() function which does not
    identify //.. (slash slash dot dot) sequences in file names inside tar
    files.
    </p>
  </description>
  <impact type="low">
    <p>
    By enticing a user to extract a specially crafted tar archive, a remote
    attacker could extract files to arbitrary locations outside of the
    specified directory with the permissions of the user running Star.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Star users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=app-arch/star-1.5_alpha84&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4134">CVE-2007-4134</uri>
  </references>
  <metadata tag="requester" timestamp="Thu, 11 Oct 2007 21:17:08 +0000">
    aetius
  </metadata>
  <metadata tag="submitter" timestamp="Mon, 15 Oct 2007 01:04:21 +0000">
    rbu
  </metadata>
  <metadata tag="bugReady" timestamp="Mon, 15 Oct 2007 17:56:09 +0000">
    rbu
  </metadata>
</glsa>