glsa-202003-47.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202003-47">
  <title>Exim: Heap-based buffer overflow</title>
  <synopsis>A vulnerability in Exim could allow a remote attacker to execute
    arbitrary code.
  </synopsis>
  <product type="ebuild"></product>
  <announced>2020-03-20</announced>
  <revised count="1">2020-03-20</revised>
  <bug>701282</bug>
  <access>remote</access>
  <affected>
    <package name="mail-mta/exim" auto="yes" arch="*">
      <unaffected range="ge">4.92.3</unaffected>
      <vulnerable range="lt">4.92.3</vulnerable>
    </package>
  </affected>
  <background>
    <p>Exim is a message transfer agent (MTA) designed to be a a highly
      configurable, drop-in replacement for sendmail.
    </p>
  </background>
  <description>
    <p>It was discovered that Exim incorrectly handled certain string
      operations.
    </p>
  </description>
  <impact type="high">
    <p>A remote attacker, able to connect to a vulnerable Exim instance, could
      possibly execute arbitrary code with the privileges of the process or
      cause a Denial of Service condition.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Exim users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=mail-mta/exim-4.92.3"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2019-16928">CVE-2019-16928</uri>
  </references>
  <metadata tag="requester" timestamp="2020-03-20T18:44:44Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2020-03-20T18:48:39Z">whissi</metadata>
</glsa>