glsa-200501-07.xml


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

<glsa id="200501-07">
  <title>xine-lib: Multiple overflows</title>
  <synopsis>
    xine-lib contains multiple overflows potentially allowing execution of
    arbitrary code.
  </synopsis>
  <product type="ebuild">xine-lib</product>
  <announced>January 06, 2005</announced>
  <revised>January 06, 2005: 01</revised>
  <bug>74475</bug>
  <access>remote</access>
  <affected>
    <package name="media-libs/xine-lib" auto="yes" arch="*">
      <unaffected range="ge">1_rc8-r1</unaffected>
      <unaffected range="rge">1_rc6-r1</unaffected>
      <vulnerable range="lt">1_rc8-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    xine-lib is a multimedia library which can be utilized to create
    multimedia frontends.
    </p>
  </background>
  <description>
    <p>
    Ariel Berkman discovered that xine-lib reads specific input data
    into an array without checking the input size in demux_aiff.c, making
    it vulnerable to a buffer overflow (CAN-2004-1300) . iDefense
    discovered that the PNA_TAG handling code in pnm_get_chunk() does not
    check if the input size is larger than the buffer size (CAN-2004-1187).
    iDefense also discovered that in this same function, a negative value
    could be given to an unsigned variable that specifies the read length
    of input data (CAN-2004-1188).
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could craft a malicious movie or convince a
    targeted user to connect to a malicious PNM server, which could result
    in the execution of arbitrary code with the rights of the user running
    any xine-lib frontend.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All xine-lib users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose media-libs/xine-lib</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1187">CAN-2004-1187</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1188">CAN-2004-1188</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1300">CAN-2004-1300</uri>
    <uri link="http://www.idefense.com/application/poi/display?id=176&amp;type=vulnerabilities">iDefense Advisory</uri>
    <uri link="http://www.idefense.com/application/poi/display?id=177&amp;type=vulnerabilities">iDefense Advisory</uri>
    <uri link="http://tigger.uic.edu/~jlongs2/holes/xine-lib.txt">Ariel Berkman Advisory</uri>
  </references>
  <metadata tag="requester" timestamp="Tue, 21 Dec 2004 14:06:44 +0000">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="Tue, 21 Dec 2004 16:57:50 +0000">
    SeJo
  </metadata>
  <metadata tag="bugReady" timestamp="Thu,  6 Jan 2005 08:50:09 +0000">
    koon
  </metadata>
</glsa>