glsa-200604-10.xml


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

<glsa id="200604-10">
  <title>zgv, xzgv: Heap overflow</title>
  <synopsis>
    xzgv and zgv attempt to decode JPEG images within the CMYK/YCCK colour
    space incorrectly, potentially resulting in the execution of arbitrary
    code.
  </synopsis>
  <product type="ebuild">xzgv</product>
  <announced>April 21, 2006</announced>
  <revised>June 10, 2006: 02</revised>
  <bug>127008</bug>
  <access>remote</access>
  <affected>
    <package name="media-gfx/xzgv" auto="yes" arch="*">
      <unaffected range="ge">0.8-r2</unaffected>
      <vulnerable range="lt">0.8-r2</vulnerable>
    </package>
    <package name="media-gfx/zgv" auto="yes" arch="*">
      <unaffected range="ge">5.9</unaffected>
      <vulnerable range="lt">5.9</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    xzgv and zgv are picture viewing utilities with a thumbnail based file
    selector.
    </p>
  </background>
  <description>
    <p>
    Andrea Barisani of Gentoo Linux discovered xzgv and zgv allocate
    insufficient memory when rendering images with more than 3 output
    components, such as images using the YCCK or CMYK colour space. When
    xzgv or zgv attempt to render the image, data from the image overruns a
    heap allocated buffer.
    </p>
  </description>
  <impact type="normal">
    <p>
    An attacker may be able to construct a malicious image that executes
    arbitrary code with the permissions of the xzgv or zgv user when
    attempting to render the image.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All xzgv users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=media-gfx/xzgv-0.8-r2&quot;</code>
    <p>
    All zgv users should also upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=media-gfx/zgv-5.9&quot;</code>
  </resolution>
  <references>
    <uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1060">CVE-2006-1060</uri>
    <uri link="http://www.svgalib.org/rus/zgv/">homepage plus Changelog</uri>
  </references>
  <metadata tag="requester" timestamp="Fri, 07 Apr 2006 14:45:12 +0000">
    jaervosz
  </metadata>
  <metadata tag="bugReady" timestamp="Fri, 14 Apr 2006 20:39:46 +0000">
    koon
  </metadata>
  <metadata tag="submitter" timestamp="Thu, 20 Apr 2006 16:13:24 +0000">
    taviso
  </metadata>
</glsa>