glsa-200511-03.xml


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

<glsa id="200511-03">
  <title>giflib: Multiple vulnerabilities</title>
  <synopsis>
    giflib may dereference NULL or write out of bounds when processing
    malformed images, potentially resulting in Denial of Service or arbitrary
    code execution.
  </synopsis>
  <product type="ebuild">giflib</product>
  <announced>November 04, 2005</announced>
  <revised>November 04, 2005: 01</revised>
  <bug>109997</bug>
  <access>remote</access>
  <affected>
    <package name="media-libs/giflib" auto="yes" arch="*">
      <unaffected range="ge">4.1.4</unaffected>
      <vulnerable range="lt">4.1.4</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    giflib is a library for reading and writing GIF images.
    </p>
  </background>
  <description>
    <p>
    Chris Evans and Daniel Eisenbud independently discovered two
    out-of-bounds memory write operations and a NULL pointer dereference in
    giflib.
    </p>
  </description>
  <impact type="normal">
    <p>
    An attacker could craft a malicious GIF image and entice users to
    load it using an application making use of the giflib library,
    resulting in an application crash or potentially the execution of
    arbitrary code.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All giflib users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=media-libs/giflib-4.1.4&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2974">CVE-2005-2974</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3350">CVE-2005-3350</uri>
  </references>
  <metadata tag="requester" timestamp="Sat, 29 Oct 2005 09:30:14 +0000">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="Wed, 02 Nov 2005 12:50:36 +0000">
    koon
  </metadata>
  <metadata tag="bugReady" timestamp="Fri, 04 Nov 2005 08:45:23 +0000">
    koon
  </metadata>
</glsa>