<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201710-16">
  <title>Shadow: Buffer overflow</title>
  <synopsis>A vulnerability found in Shadow may allow remote attackers to cause
    a Denial of Service condition or produce other unspecified behaviors.
  </synopsis>
  <product type="ebuild">shadow</product>
  <announced>2017-10-15</announced>
  <revised count="1">2017-10-15</revised>
  <bug>627044</bug>
  <access>remote</access>
  <affected>
    <package name="sys-apps/shadow" auto="yes" arch="*">
      <unaffected range="ge">4.5</unaffected>
      <vulnerable range="lt">4.5</vulnerable>
    </package>
  </affected>
  <background>
    <p>Shadow is a set of tools to deal with user accounts.</p>
  </background>
  <description>
    <p>Malformed input in the newusers tool may produce crashes and other
      unspecified behaviors.
    </p>
  </description>
  <impact type="normal">
    <p>A remote attacker could possibly cause a Denial of Service condition or
      bypass privilege boundaries in some web-hosting environments in which a
      Control Panel allows an unprivileged user account to create subaccounts.
    </p>
  </impact>
  <workaround>
    <p>There is no known workaround at this time.</p>
  </workaround>
  <resolution>
    <p>All Shadow users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=sys-apps/shadow-4.5"
    </code>
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12424">
      CVE-2017-12424
    </uri>
  </references>
  <metadata tag="requester" timestamp="2017-10-13T22:41:20Z">b-man</metadata>
  <metadata tag="submitter" timestamp="2017-10-15T20:17:52Z">chrisadr</metadata>
</glsa>
