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[ISN] Linux Advisory Watch - June 4th 2004

|  LinuxSecurity.com                        Linux Advisory Watch |
|  June 4th, 2004                           Volume 5, Number 23a |

  Editors:     Dave Wreski                Benjamin Thomas
               dave@xxxxxxxxxxxxxxxxx     ben@xxxxxxxxxxxxxxxxx

Linux Advisory Watch is a comprehensive newsletter that outlines the
security vulnerabilities that have been announced throughout the week.
It includes point

This week, advisories were released for mailman, kde, MySQL, mc, Apache,
Heimdal, utempter, and LHA.  The distributors include Conectiva, FreeBSD:
core, Gentoo, Mandrake, Red Hat, and SuSE.


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Incident Response

One of the most overlooked aspects of information security is incident
response.  Often system administrators and management only take action
after a compromise or critical failure. Incident response includes much
more than sorting out problems after they occur.  It includes incident
preparation, detection mechanisms, containment, eradication, restoration,
and review.

In preparation for a security incident, it is important to establish a
security policy & plan of action and identify a security response team
that is available 24 hours.  Software to be used during an incident should
be installed, tested, and configured during the preparation phase.
During the adrenaline rush of an incident, it is impossible to learn new

Administrators should also take appropriate steps to ensure event
detection.  This includes scanning and reviewing system log files,
installing host and network based intrusion detection systems, and
implementing a remote notification system to notify members of the
security response team via pager or mobile phone.

Upon detection of an incident, it is important to have containment
procedures.  Is the threat a network user?  It is important that the staff
has the knowledge and tools necessary to address the problem at the
firewall level.  If there is a system compromise, is tripwire configured
properly to report exactly what files were modified?  After containment,
the next step is eradication.  How can the problem be eliminated?  The
primary purpose of containment and eradication is limiting damage and
stopping the problem from further damage.

After an incident has commenced, the next step is system restoration.  It
is important to assess the actual damage that took place and restore the
system to its original condition. This may only include fixing a few
files, or restoring completely from a tape-backup.  Finally, after
restoration is important to review how well the incident was handled.

Until next time, cheers!
Benjamin D. Thomas


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source, and information on future developments.



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|  Distribution: Conectiva        | ----------------------------//

 5/27/2004 - mailman
   Multiple vulnerabilities

   Fixes cross site scripting and remote password retrieval
   vulnerabilities, plus a denial of service.

 5/27/2004 - kde
   Insufficient input sanitation

   The telnet, rlogin, ssh and mailto URI handlers in KDE do not
   check for '-' at the beginning of the hostname passed.

|  Distribution: FreeBSD          | ----------------------------//

 5/27/2004 - core:sys Buffer cache invalidation vulnerability
   Insufficient input sanitation

   In some situations, a user with read access to a file may be able
   to prevent changes to that file from being committed to disk.

|  Distribution: Gentoo           | ----------------------------//

 5/27/2004 - MySQL
   Symlink vulnerability

   Two MySQL utilities create temporary files with hardcoded paths,
   allowing an attacker to use a symlink to trick MySQL into
   overwriting important data.

 5/27/2004 - mc
   Multiple vulnerabilities

   Multiple security issues have been discovered in Midnight
   Commander including several buffer overflows and string format

 5/27/2004 - Apache
   1.3 Multiple vulnerabilities

   Several security vulnerabilites have been fixed in the latest
   release of Apache 1.3.

 5/27/2004 - Heimdal
   Buffer overflow vulnerability

   A possible buffer overflow in the Kerberos 4 component of Heimdal
   has been discovered.

|  Distribution: Mandrake         | ----------------------------//

 5/27/2004 - mailman
   Password leak vulnerability

   Mailman versions >= 2.1 have an issue where 3rd parties can
   retrieve member passwords from the server.

 5/27/2004 - kolab-server Plain text passwords
   Password leak vulnerability

   The affected versions store OpenLDAP passwords in plain text.

|  Distribution: Red Hat          | ----------------------------//

 5/27/2004 - utempter
   Symlink vulnerability

   An updated utempter package that fixes a potential symlink
   vulnerability is now available.

 5/27/2004 - LHA
   Multiple vulnerabilities

   Ulf Harnhammar discovered two stack buffer overflows and two
   directory traversal flaws in LHA.

 5/27/2004 - tcpdump,libpcap,arpwatch Denial of service vulnerability
   Multiple vulnerabilities

   Upon receiving specially crafted ISAKMP packets, TCPDUMP would

|  Distribution: SuSE             | ----------------------------//

 5/27/2004 - kdelibs/kdelibs3 Insufficient input sanitation
   Multiple vulnerabilities

   The URI handler of the kdelibs3 and kdelibs class library contains
   a flaw which allows remote attackers to create arbitrary files as
   the user utilizing the kdelibs3/kdelibs package.

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