glsa-200806-08.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200806-08">
  <title>OpenSSL: Denial of Service</title>
  <synopsis>
    Two vulnerabilities might allow for a Denial of Service of daemons using
    OpenSSL.
  </synopsis>
  <product type="ebuild">openssl</product>
  <announced>2008-06-23</announced>
  <revised>2008-06-23: 01</revised>
  <bug>223429</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/openssl" auto="yes" arch="*">
      <unaffected range="ge">0.9.8g-r2</unaffected>
      <unaffected range="lt">0.9.8f</unaffected>
      <vulnerable range="lt">0.9.8g-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
    (SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general
    purpose cryptography library.
    </p>
  </background>
  <description>
    <p>
    Ossi Herrala and Jukka Taimisto of Codenomicon discovered two
    vulnerabilities:
    </p>
    <ul>
    <li>
    A double free() call in the TLS server name extension (CVE-2008-0891).
    </li>
    <li>
    The OpenSSL client code does not properly handle servers that omit the
    Server Key Exchange message in the TLS handshake (CVE-2008-1672).
    </li>
    </ul>
  </description>
  <impact type="normal">
    <p>
    A remote attacker could connect to a vulnerable server, or entice a
    daemon to connect to a malicious server, causing a Denial of Service of
    the daemon in both cases.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All OpenSSL users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=dev-libs/openssl-0.9.8g-r2"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0891">CVE-2008-0891</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1672">CVE-2008-1672</uri>
  </references>
  <metadata tag="requester" timestamp="2008-06-16T22:48:49Z">
    rbu
  </metadata>
  <metadata tag="submitter" timestamp="2008-06-16T23:22:26Z">
    rbu
  </metadata>
  <metadata tag="bugReady" timestamp="2008-06-16T23:22:36Z">
    rbu
  </metadata>
</glsa>