glsa-202101-33.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202101-33">
  <title>sudo: Multiple vulnerabilities</title>
  <synopsis>Multiple vulnerabilities have been found in sudo, the worst of
    which could result in privilege escalation.
  </synopsis>
  <product type="ebuild">sudo</product>
  <announced>2021-01-26</announced>
  <revised count="1">2021-01-26</revised>
  <bug>764986</bug>
  <bug>767364</bug>
  <access>local</access>
  <affected>
    <package name="app-admin/sudo" auto="yes" arch="*">
      <unaffected range="ge">1.9.5_p2</unaffected>
      <vulnerable range="lt">1.9.5_p2</vulnerable>
    </package>
  </affected>
  <background>
    <p>sudo (su “do”) allows a system administrator to delegate authority
      to give certain users (or groups of users) the ability to run some (or
      all) commands as root or another user while providing an audit trail of
      the commands and their arguments.
    </p>
  </background>
  <description>
    <p>Multiple vulnerabilities have been discovered in sudo. Please review the
      CVE identifiers referenced below for details.
    </p>
  </description>
  <impact type="high">
    <p>Local users are able to gain unauthorized privileges on the system or
      determine the existence of files.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All sudo users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-admin/sudo-1.9.5_p2"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-23239">CVE-2021-23239</uri>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-23240">CVE-2021-23240</uri>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-3156">CVE-2021-3156</uri>
    <uri link="https://www.sudo.ws/alerts/sudoedit_selinux.html">Upstream
      advisory (CVE-2020-23240)
    </uri>
    <uri link="https://www.sudo.ws/alerts/unescape_overflow.html">Upstream
      advisory (CVE-2021-3156)
    </uri>
  </references>
  <metadata tag="requester" timestamp="2021-01-26T22:52:21Z">sam_c</metadata>
  <metadata tag="submitter" timestamp="2021-01-26T23:40:46Z">sam_c</metadata>
</glsa>