glsa-200411-27.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200411-27">
  <title>Fcron: Multiple vulnerabilities</title>
  <synopsis>
    Multiple vulnerabilities in Fcron can allow a local user to potentially
    cause a Denial of Service.
  </synopsis>
  <product type="ebuild">fcron</product>
  <announced>2004-11-18</announced>
  <revised count="01">2004-11-18</revised>
  <bug>71311</bug>
  <access>local</access>
  <affected>
    <package name="sys-process/fcron" auto="yes" arch="*">
      <unaffected range="rge">2.0.2</unaffected>
      <unaffected range="ge">2.9.5.1</unaffected>
      <vulnerable range="le">2.9.5</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Fcron is a command scheduler with extended capabilities over cron
    and anacron.
    </p>
  </background>
  <description>
    <p>
    Due to design errors in the fcronsighup program, Fcron may allow a
    local user to bypass access restrictions (CAN-2004-1031), view the
    contents of root owned files (CAN-2004-1030), remove arbitrary files or
    create empty files (CAN-2004-1032), and send a SIGHUP to any process. A
    vulnerability also exists in fcrontab which may allow local users to
    view the contents of fcron.allow and fcron.deny (CAN-2004-1033).
    </p>
  </description>
  <impact type="normal">
    <p>
    A local attacker could exploit these vulnerabilities to perform a
    Denial of Service on the system running Fcron.
    </p>
  </impact>
  <workaround>
    <p>
    Make sure the fcronsighup and fcrontab binaries are only
    executable by trusted users.
    </p>
  </workaround>
  <resolution>
    <p>
    All Fcron users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=sys-process/fcron-2.0.2"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1030">CAN-2004-1030</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1031">CAN-2004-1031</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1032">CAN-2004-1032</uri>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1033">CAN-2004-1033</uri>
  </references>
  <metadata tag="requester" timestamp="2004-11-16T16:18:47Z">
    lewk
  </metadata>
  <metadata tag="submitter" timestamp="2004-11-16T19:52:12Z">
    lewk
  </metadata>
  <metadata tag="bugReady" timestamp="2004-11-17T19:04:05Z">
    lewk
  </metadata>
</glsa>