glsa-200711-15.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200711-15">
  <title>FLAC: Buffer overflow</title>
  <synopsis>
    Multiple integer overflow vulnerabilities were found in FLAC possibly
    allowing for the execution of arbitrary code.
  </synopsis>
  <product type="ebuild">flac</product>
  <announced>2007-11-12</announced>
  <revised count="01">2007-11-12</revised>
  <bug>195700</bug>
  <access>remote</access>
  <affected>
    <package name="media-libs/flac" auto="yes" arch="*">
      <unaffected range="ge">1.2.1-r1</unaffected>
      <vulnerable range="lt">1.2.1-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    The Xiph.org Free Lossless Audio Codec (FLAC) library is the reference
    implementation of the FLAC audio file format. It contains encoders and
    decoders in library and executable form.
    </p>
  </background>
  <description>
    <p>
    Sean de Regge reported multiple integer overflows when processing FLAC
    media files that could lead to improper memory allocations resulting in
    heap-based buffer overflows.
    </p>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could entice a user to open a specially crafted FLAC
    file or network stream with an application using FLAC. This might lead
    to the execution of arbitrary code with privileges of the user playing
    the file.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All FLAC users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=media-libs/flac-1.2.1-r1"</code>
    <p>
    You should also run revdep-rebuild to rebuild any packages that depend
    on older versions of FLAC:
    </p>
    <code>
    # revdep-rebuild --library=libFLAC.*</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4619">CVE-2007-4619</uri>
  </references>
  <metadata tag="requester" timestamp="2007-11-01T19:12:08Z">
    rbu
  </metadata>
  <metadata tag="submitter" timestamp="2007-11-02T03:25:37Z">
    rbu
  </metadata>
  <metadata tag="bugReady" timestamp="2007-11-03T23:19:45Z">
    rbu
  </metadata>
</glsa>