glsa-202007-56.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202007-56">
  <title>Claws Mail: Improper STARTTLS handling</title>
  <synopsis>A vulnerability was discovered in Claws Mail's STARTTLS handling,
    possibly allowing an integrity/confidentiality compromise.
  </synopsis>
  <product type="ebuild">claws-mail</product>
  <announced>2020-07-28</announced>
  <revised count="1">2020-07-28</revised>
  <bug>733684</bug>
  <access>remote</access>
  <affected>
    <package name="mail-client/claws-mail" auto="yes" arch="*">
      <unaffected range="ge">3.17.6</unaffected>
      <vulnerable range="lt">3.17.6</vulnerable>
    </package>
  </affected>
  <background>
    <p>Claws Mail is a GTK based e-mail client.</p>
  </background>
  <description>
    <p>It was discovered that Claws Mail was not properly handling state within
      the STARTTLS protocol handshake.
    </p>
  </description>
  <impact type="normal">
    <p>There may be a breach of integrity or confidentiality in connections
      made using Claws Mail with STARTTLS.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Claws Mail users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=mail-client/claws-mail-3.17.6"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-15917">CVE-2020-15917</uri>
  </references>
  <metadata tag="requester" timestamp="2020-07-27T16:52:43Z">sam_c</metadata>
  <metadata tag="submitter" timestamp="2020-07-28T19:36:02Z">sam_c</metadata>
</glsa>