<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200906-01">
  <title>libpng: Information disclosure</title>
  <synopsis>
    A vulnerability has been discovered in libpng that allows for information
    disclosure.
  </synopsis>
  <product type="ebuild">libpng</product>
  <announced>2009-06-27</announced>
  <revised count="01">2009-06-27</revised>
  <bug>272970</bug>
  <access>remote</access>
  <affected>
    <package name="media-libs/libpng" auto="yes" arch="*">
      <unaffected range="ge">1.2.37</unaffected>
      <vulnerable range="lt">1.2.37</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    libpng is the official PNG reference library used to read, write and
    manipulate PNG images.
    </p>
  </background>
  <description>
    <p>
    Jeff Phillips discovered that libpng does not properly parse 1-bit
    interlaced images with width values that are not divisible by 8, which
    causes libpng to include uninitialized bits in certain rows of a PNG
    file.
    </p>
  </description>
  <impact type="low">
    <p>
    A remote attacker might entice a user to open a specially crafted PNG
    file, possibly resulting in the disclosure of sensitive memory
    portions.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All libpng users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=media-libs/libpng-1.2.37"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2042">CVE-2009-2042</uri>
  </references>
  <metadata tag="requester" timestamp="2009-06-21T18:15:41Z">
    keytoaster
  </metadata>
  <metadata tag="submitter" timestamp="2009-06-21T18:23:22Z">
    keytoaster
  </metadata>
  <metadata tag="bugReady" timestamp="2009-06-27T23:12:55Z">
    keytoaster
  </metadata>
</glsa>
