Kerberos Key Distribution Center Denial of Service Vulnerability

BID:6683

Info

Kerberos Key Distribution Center Denial of Service Vulnerability

Bugtraq ID: 6683
Class: Boundary Condition Error
CVE: CVE-2003-0058
Remote: Yes
Local: No
Published: Jul 26 2002 12:00AM
Updated: Jul 11 2009 08:06PM
Credit: The discovery of this vulnerability has been credited to Greg Pryzby and Ken Raeburn.
Vulnerable: Sun Solaris 9
Sun Solaris 8_x86
Sun Solaris 8_sparc
Sun Solaris 7.0_x86
Sun Solaris 7.0
Sun Solaris 2.6_x86
Sun Solaris 2.6
Sun SEAM 1.0
MIT Kerberos 5 1.2.4
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
+ Redhat Linux 7.3 i386
 + Redhat Linux 7.3
MIT Kerberos 5 1.2.3
MIT Kerberos 5 1.2.2
+ MandrakeSoft Multi Network Firewall 2.0
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
+ Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.2
+ Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.1
+ Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 7.0
MIT Kerberos 5 1.2.1
MIT Kerberos 5 1.2
MIT Kerberos 5 1.1.1
- Redhat Linux 7.1 ia64
 - Redhat Linux 7.1 i386
 - Redhat Linux 7.1 alpha
 - Redhat Linux 7.1
- Redhat Linux 7.0 i386
 - Redhat Linux 7.0 alpha
 - Redhat Linux 7.0
+ Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 + Redhat Linux 6.2
Not Vulnerable: MIT Kerberos 5 1.2.5
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ Mandriva Linux Mandrake 9.0
+ Redhat Linux 8.0 i386
 + Redhat Linux 8.0
+ Turbolinux Home
+ Turbolinux Turbolinux 10 F...
 + Turbolinux Turbolinux Desktop 10.0
+ Turbolinux Turbolinux Server 8.0
+ Wirex Immunix OS 7+

Discussion

Kerberos Key Distribution Center Denial of Service Vulnerability

A vulnerability has been discovered in Kerberos Key Distribution Center (KDC). It has been reported that a denial of service can be triggered through a malicious Ticket Granting Service request. An authenticated malicious attacker could exploit this issue remotely to cause to dereference a NULL pointer. This would result in the affected KDC service to crash. Multiple KDC services may also crash.

This issue has been reported to affect Kerberos Key Distribution Center versions prior to 1.2.5.

Exploit / POC

Kerberos Key Distribution Center Denial of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Kerberos Key Distribution Center Denial of Service Vulnerability

Solution:
Sun has released an alert (Sun Alert ID: 50142) which contains fixes. Users are advised to upgrade as soon as possible.

Conectiva has released a security advisory (CLA-2003:639) containing fixes which address this issue. Users are advised to upgrade as soon as possible.

This issue has been addressed in Kerberos 1.2.5.


Sun Solaris 2.6

Sun Solaris 7.0

Sun Solaris 8_x86

Sun Solaris 2.6_x86

Sun Solaris 8_sparc

Sun Solaris 9

Sun Solaris 7.0_x86

Sun SEAM 1.0

MIT Kerberos 5 1.1.1

MIT Kerberos 5 1.2

MIT Kerberos 5 1.2.1

MIT Kerberos 5 1.2.2

MIT Kerberos 5 1.2.3

MIT Kerberos 5 1.2.4

References

Kerberos Key Distribution Center Denial of Service Vulnerability

References:

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