glsa-201611-10.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201611-10">
  <title>libuv: Privilege escalation</title>
  <synopsis>A vulnerability in libuv could lead to privilege escalation.</synopsis>
  <product type="ebuild"/>
  <announced>2016-11-17</announced>
  <revised count="1">2016-11-17</revised>
  <bug>540826</bug>
  <access>local, remote</access>
  <affected>
    <package name="dev-libs/libuv" auto="yes" arch="*">
      <unaffected range="ge">1.4.2</unaffected>
      <vulnerable range="lt">1.4.2</vulnerable>
    </package>
  </affected>
  <background>
    <p>libuv is a multi-platform support library with a focus on asynchronous
      I/O.
    </p>
  </background>
  <description>
    <p>It was discovered that libuv does not call setgroups before calling
      setuid/setgid.  If this is not called, then even though the uid has been
      dropped, there may still be groups associated that permit superuser
      privileges.
    </p>
  </description>
  <impact type="normal">
    <p>Context-dependent attackers could escalate privileges via unspecified
      vectors.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All libuv users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --verbose --oneshot "&gt;=dev-libs/libuv-1.4.2"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-0278">CVE-2015-0278</uri>
  </references>
  <metadata tag="requester" timestamp="2016-11-17T08:33:56Z">b-man</metadata>
  <metadata tag="submitter" timestamp="2016-11-17T10:08:59Z">b-man</metadata>
</glsa>