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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>November 18, 2004</announced>
<revised>November 18, 2004: 01</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 &quot;&gt;=sys-process/fcron-2.0.2&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1030">CAN-2004-1030</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1031">CAN-2004-1031</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1032">CAN-2004-1032</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1033">CAN-2004-1033</uri>
</references>
<metadata tag="requester" timestamp="Tue, 16 Nov 2004 16:18:47 +0000">
lewk
</metadata>
<metadata tag="submitter" timestamp="Tue, 16 Nov 2004 19:52:12 +0000">
lewk
</metadata>
<metadata tag="bugReady" timestamp="Wed, 17 Nov 2004 19:04:05 +0000">
lewk
</metadata>
</glsa>