glsa-201801-10.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201801-10">
  <title>LibXfont, LibXfont2: Arbitrary file access</title>
  <synopsis>A vulnerability has been found in LibXfont and LibXfont2 which may
    allow for arbitrary file access.
  </synopsis>
  <product type="ebuild">LibXfont, LibXfont2</product>
  <announced>2018-01-08</announced>
  <revised count="1">2018-01-08</revised>
  <bug>639064</bug>
  <access>local</access>
  <affected>
    <package name="x11-libs/libXfont" auto="yes" arch="*">
      <unaffected range="ge">1.5.4</unaffected>
      <vulnerable range="lt">1.5.4</vulnerable>
    </package>
    <package name="x11-libs/libXfont2" auto="yes" arch="*">
      <unaffected range="ge">2.0.3</unaffected>
      <vulnerable range="lt">2.0.3</vulnerable>
    </package>
  </affected>
  <background>
    <p>X.Org Xfont library.</p>
  </background>
  <description>
    <p>It was discovered that libXfont incorrectly followed symlinks when
      opening font files.
    </p>
  </description>
  <impact type="normal">
    <p>A local unprivileged user could use this flaw to cause the X server to
      access arbitrary files, including special device files.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All LibXfont users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=x11-libs/libXfont-1.5.4"
    </code>
    
    <p>All LibXfont2 users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=x11-libs/libXfont2-2.0.3"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-16611">
      CVE-2017-16611
    </uri>
  </references>
  <metadata tag="requester" timestamp="2018-01-05T05:31:41Z">jmbailey</metadata>
  <metadata tag="submitter" timestamp="2018-01-08T12:26:24Z">jmbailey</metadata>
</glsa>