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Home » Hacking News » Immunix IMNX-2003-7+-007-01: Kerberos multiple vulnerabilities

Immunix IMNX-2003-7+-007-01: Kerberos multiple vulnerabilities

by Nikola Strahija on April 9th, 2003 Several vulnerabilities have been found in the MIT Kerberos suite which, if exploited, could allow denial-of-service attacks.


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Immunix Secured OS Security Advisory

Packages updated: Kerberos 5
Affected products: ImmunixOS 7.0, 7+
Bugs fixed: CAN-2003-0139 CAN-2003-0138 CAN-2003-0028 CAN-2003-0082
Date: Mon Apr 7 2003
Advisory ID: IMNX-2003-7+-007-01
Author: Seth Arnold
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Description:
Multiple vulnerabilities have been found in the MIT Kerberos suite.
This release removes triple-DES support in Kerberos IV and cross-realm
authentication in Kerberos IV, as both are known to be insecure. This
release also fixes two denial of service attacks against the Kerberos
daemons.

All Kerberos users should upgrade to these packages, with the caveat
that organizations relying on Kerberos IV cross-realm authentication
should upgrade to Kerberos 5 first.

References: http://web.mit.edu/kerberos/www/advisories/
http://www.securityfocus.com/archive/1/317239/2003-03-29/2003-04-04/0

Package names and locations:
Precompiled binary packages for Immunix 7+ are available at:
http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/krb5-devel-1.2.5-1_imnx_1.i386.rpm
http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/krb5-libs-1.2.5-1_imnx_1.i386.rpm
http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/krb5-server-1.2.5-1_imnx_1.i386.rpm
http://download.immunix.org/ImmunixOS/7+/Updates/RPMS/krb5-workstation-1.2.5-1_imnx_1.i386.rpm

Immunix OS 7+ md5sums:
bf99edf8d08c5c06dd233b14ad0a83a3 krb5-devel-1.2.5-1_imnx_1.i386.rpm
568ad8140cb696ac928659a1c4011e9e krb5-libs-1.2.5-1_imnx_1.i386.rpm
54bbd2710288984a881df5aee9afcfca krb5-server-1.2.5-1_imnx_1.i386.rpm
6cc7d97598232886f314e4c5dc9b2540 krb5-workstation-1.2.5-1_imnx_1.i386.rpm


GPG verification:
Our public key is available at http://wirex.com/security/GPG_KEY.

NOTE:
Ibiblio is graciously mirroring our updates, so if the links above are
slow, please try:
ftp://ftp.ibiblio.org/pub/Linux/distributions/immunix/
or one of the many mirrors available at:
http://www.ibiblio.org/pub/Linux/MIRRORS.html

ImmunixOS 6.2 is no longer officially supported.
ImmunixOS 7.0 is no longer officially supported.

Contact information:
To report vulnerabilities, please contact [email protected] WireX
attempts to conform to the RFP vulnerability disclosure protocol
http://www.wiretrip.net/rfp/policy.html.


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