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

<glsa id="200805-11">
  <title>Chicken: Multiple vulnerabilities</title>
  <synopsis>
    Multiple vulnerabilities in Chicken could result in the execution of
    arbitrary code.
  </synopsis>
  <product type="ebuild">chicken</product>
  <announced>May 12, 2008</announced>
  <revised>May 12, 2008: 01</revised>
  <bug>198979</bug>
  <access>remote</access>
  <affected>
    <package name="dev-scheme/chicken" auto="yes" arch="*">
      <unaffected range="ge">3.1.0</unaffected>
      <vulnerable range="lt">3.1.0</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Chicken is a Scheme interpreter and native Scheme to C compiler.
    </p>
  </background>
  <description>
    <p>
    Chicken includes a copy of PCRE which is vulnerable to multiple buffer
    overflows and memory corruption vulnerabilities (GLSA 200711-30).
    </p>
  </description>
  <impact type="normal">
    <p>
    An attacker could entice a user to process specially crafted regular
    expressions with Chicken, which could possibly lead to the execution of
    arbitrary code, a Denial of Service or the disclosure of sensitive
    information.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All Chicken users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=dev-scheme/chicken-3.1.0&quot;</code>
  </resolution>
  <references>
    <uri link="/security/en/glsa/glsa-200711-30.xml">GLSA 200711-30</uri>
  </references>
  <metadata tag="requester" timestamp="Mon, 12 May 2008 11:47:42 +0000">
    p-y
  </metadata>
  <metadata tag="bugReady" timestamp="Mon, 12 May 2008 11:47:52 +0000">
    p-y
  </metadata>
  <metadata tag="submitter" timestamp="Mon, 12 May 2008 12:10:35 +0000">
    p-y
  </metadata>
</glsa>