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Test ID:1.3.6.1.4.1.25623.1.0.56302
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-253-1 (heimdal)
Summary:Ubuntu USN-253-1 (heimdal)
Description:
The remote host is missing an update to heimdal
announced via advisory USN-253-1.

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)
Ubuntu 5.04 (Hoary Hedgehog)
Ubuntu 5.10 (Breezy Badger)

The following packages are affected: heimdal-servers

A remote Denial of Service vulnerability was discovered in the heimdal
implementation of the telnet daemon. A remote attacker could force the
server to crash due to a NULL de-reference before the user logged in,
resulting in inetd turning telnetd off because it forked too fast.

Please note that the heimdal-servers package is not officially
supported in Ubuntu (it is in the 'universe' component of the
archive). However, this affects you if you use a customized version
built from the heimdal source package (which is supported).

Solution:
The problem can be corrected by upgrading the affected package to
version 0.6.2-3ubuntu0.3 (for Ubuntu 4.10), 0.6.3-7ubuntu1.3 (for
Ubuntu 5.04), or 0.6.3-11ubuntu1.2 (for Ubuntu 5.10). In general, a
standard system upgrade is sufficient to effect the necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-253-1

Risk factor : High
Cross-Ref: BugTraq ID: 16676
Common Vulnerability Exposure (CVE) ID: CVE-2006-0677
http://www.stacken.kth.se/lists/heimdal-discuss/2006-02/msg00028.html
Debian Security Information: DSA-977 (Google Search)
http://www.debian.org/security/2006/dsa-977
SuSE Security Announcement: SUSE-SA:2006:011 (Google Search)
http://www.securityfocus.com/archive/1/archive/1/426043/100/0/threaded
http://www.ubuntu.com/usn/usn-253-1
http://www.securityfocus.com/bid/16676
http://www.vupen.com/english/advisories/2006/0456
http://www.vupen.com/english/advisories/2006/0628
http://www.vupen.com/english/advisories/2006/0653
http://www.osvdb.org/23244
http://secunia.com/advisories/18894
http://secunia.com/advisories/19005
http://secunia.com/advisories/18961
http://securityreason.com/securityalert/449
XForce ISS Database: heimdal-telnetd-dos(24763)
http://xforce.iss.net/xforce/xfdb/24763
CopyrightCopyright (c) 2006 E-Soft Inc. http://www.securityspace.com

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