gentoo-overlay/metadata/glsa/glsa-201706-01.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201706-01">
  <title>MUNGE: Privilege escalation </title>
  <synopsis>Gentoo's MUNGE ebuilds are vulnerable to privilege escalation due
    to improper permissions.
  </synopsis>
  <product type="ebuild">munge</product>
  <announced>2017-06-06</announced>
  <revised count="1">2017-06-06</revised>
  <bug>602596</bug>
  <access>local</access>
  <affected>
    <package name="sys-auth/munge" auto="yes" arch="*">
      <unaffected range="ge">0.5.10-r2</unaffected>
      <vulnerable range="lt">0.5.10-r2</vulnerable>
    </package>
  </affected>
  <background>
    <p>An authentication service for creating and validating credentials.</p>
  </background>
  <description>
    <p>It was discovered that Gentoo’s default MUNGE installation suffered
      from a privilege escalation vulnerability (munge user to root) due to
      improper permissions and a runscript which called chown() on a user
      controlled file.
    </p>
  </description>
  <impact type="high">
    <p>A local attacker, who either is already MUNGE’s system user or belongs
      to MUNGE’s group, could potentially escalate privileges.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All MUNGE users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=sys-auth/munge-0.5.10-r2"
    </code>
  </resolution>
  <references>
  </references>
  <metadata tag="requester" timestamp="2017-01-08T22:27:29Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2017-06-06T06:21:40Z">whissi</metadata>
</glsa>