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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200411-27">
<title>Fcron: Multiple vulnerabilities</title>
Multiple vulnerabilities in Fcron can allow a local user to potentially
cause a Denial of Service.
<product type="ebuild">fcron</product>
<announced>November 18, 2004</announced>
<revised>November 18, 2004: 01</revised>
<package name="sys-process/fcron" auto="yes" arch="*">
<unaffected range="rge">2.0.2</unaffected>
<unaffected range="ge"></unaffected>
<vulnerable range="le">2.9.5</vulnerable>
Fcron is a command scheduler with extended capabilities over cron
and anacron.
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).
<impact type="normal">
A local attacker could exploit these vulnerabilities to perform a
Denial of Service on the system running Fcron.
Make sure the fcronsighup and fcrontab binaries are only
executable by trusted users.
All Fcron users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=sys-process/fcron-2.0.2&quot;</code>
<uri link="">CAN-2004-1030</uri>
<uri link="">CAN-2004-1031</uri>
<uri link="">CAN-2004-1032</uri>
<uri link="">CAN-2004-1033</uri>
<metadata tag="requester" timestamp="Tue, 16 Nov 2004 16:18:47 +0000">
<metadata tag="submitter" timestamp="Tue, 16 Nov 2004 19:52:12 +0000">
<metadata tag="bugReady" timestamp="Wed, 17 Nov 2004 19:04:05 +0000">