glsa-202105-05.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202105-05">
  <title>Mutt, NeoMutt: Denial of service</title>
  <synopsis>A vulnerability in Mutt and NeoMutt could lead to a Denial of
    Service condition.
  </synopsis>
  <product type="ebuild">mutt,neomutt</product>
  <announced>2021-05-26</announced>
  <revised count="1">2021-05-26</revised>
  <bug>788388</bug>
  <bug>788391</bug>
  <access>remote</access>
  <affected>
    <package name="mail-client/mutt" auto="yes" arch="*">
      <unaffected range="ge">2.0.7</unaffected>
      <vulnerable range="lt">2.0.7</vulnerable>
    </package>
    <package name="mail-client/neomutt" auto="yes" arch="*">
      <unaffected range="ge">20210205-r1</unaffected>
      <vulnerable range="lt">20210205-r1</vulnerable>
    </package>
  </affected>
  <background>
    <p>Mutt is a small but very powerful text-based mail client.</p>
    
    <p>NeoMutt is a command line mail reader (or MUA). It’s a fork of Mutt
      with added features.
    </p>
  </background>
  <description>
    <p>It was discovered that Mutt, and NeoMutt did not properly handle certain
      situations where an IMAP sequence set ends with a comma.
    </p>
  </description>
  <impact type="low">
    <p>A remote attacker could entice a user to connect to a malicious IMAP
      server to cause a Denial of Service condition, or other unspecified
      impacts.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Mutt users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=mail-client/mutt-2.0.7"
    </code>
    
    <p>All NeoMutt users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=mail-client/neomutt-20210205-r1"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-32055">CVE-2021-32055</uri>
  </references>
  <metadata tag="requester" timestamp="2021-05-25T22:00:56Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2021-05-26T07:46:31Z">whissi</metadata>
</glsa>