glsa-201706-29.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201706-29">
  <title>KAuth and KDELibs: Privilege escalation</title>
  <synopsis>A vulnerability in KAuth and KDELibs allows local users to gain
    root privileges.
  </synopsis>
  <product type="ebuild">kauth,kdelibs</product>
  <announced>2017-06-27</announced>
  <revised count="1">2017-06-27</revised>
  <bug>618108</bug>
  <access>local</access>
  <affected>
    <package name="kde-frameworks/kauth" auto="yes" arch="*">
      <unaffected range="ge">5.29.0-r1</unaffected>
      <vulnerable range="lt">5.29.0-r1</vulnerable>
    </package>
    <package name="kde-frameworks/kdelibs" auto="yes" arch="*">
      <unaffected range="ge">4.14.32</unaffected>
      <vulnerable range="lt">4.14.32</vulnerable>
    </package>
  </affected>
  <background>
    <p>KAuth provides a convenient, system-integrated way to offload actions
      that need to be performed as a privileged user (root, for example) to
      small (hopefully secure) helper utilities.
    </p>
    
    <p>The KDE libraries, basis of KDE and used by many open source projects.</p>
  </background>
  <description>
    <p>KAuth and KDELibs contains a logic flaw in which the service invoking
      D-Bus is not properly checked. This allows spoofing the identity of the
      caller and with some carefully crafted calls can lead to gaining root
      from an unprivileged account.
    </p>
  </description>
  <impact type="high">
    <p>A local attacker could spoof the identity of the caller invoking D-Bus,
      possibly resulting in gaining privileges.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All KAuth users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=kde-frameworks/kauth-5.29.0-r1"
    </code>
    
    <p>All KDELibs users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=kde-frameworks/kdelibs-4.14.32"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-8422">CVE-2017-8422</uri>
  </references>
  <metadata tag="requester" timestamp="2017-06-06T14:01:55Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2017-06-27T09:58:27Z">whissi</metadata>
</glsa>