<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201811-03">
  <title>OpenSSL: Denial of service</title>
  <synopsis>A vulnerability in OpenSSL might allow remote attackers to cause a
    Denial of Service condition.
  </synopsis>
  <product type="ebuild">openssl</product>
  <announced>2018-11-09</announced>
  <revised count="1">2018-11-09</revised>
  <bug>663654</bug>
  <access>remote</access>
  <affected>
    <package name="dev-libs/openssl" auto="yes" arch="*">
      <unaffected range="ge">1.0.2o-r6</unaffected>
      <vulnerable range="lt">1.0.2o-r6</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>It was discovered that OpenSSL allow malicious servers to send very
      large primes to a client during DH(E) based TLS handshakes.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker, by sending large prime to client during DH(E) TLS
      handshake, could possibly cause a Denial of Service condition.
    </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-1.0.2o-r6"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2018-0732">CVE-2018-0732</uri>
  </references>
  <metadata tag="requester" timestamp="2018-11-08T02:56:32Z">BlueKnight</metadata>
  <metadata tag="submitter" timestamp="2018-11-09T00:24:28Z">whissi</metadata>
</glsa>
