MIT Kerberos 5 Principal Name Buffer Underrun Vulnerability

BID:7185

Info

MIT Kerberos 5 Principal Name Buffer Underrun Vulnerability

Bugtraq ID: 7185
Class: Boundary Condition Error
CVE: CVE-2003-0082
Remote: Yes
Local: No
Published: Mar 19 2003 12:00AM
Updated: Jul 11 2009 09:06PM
Credit: Discovery is credited to Nalin Dahyabhai.
Vulnerable: Sun Solaris 9_x86
Sun Solaris 9
Sun Solaris 8_x86
Sun Solaris 8_sparc
Sun SEAM 1.0.2
+ Sun Solaris 9_x86
 + Sun Solaris 9
 Sun SEAM 1.0.1
+ Sun Solaris 8_x86
 + Sun Solaris 8_sparc
 Sun SEAM 1.0
MIT Kerberos 5 1.3 -alpha1
MIT Kerberos 5 1.2.7
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
+ Redhat Linux 9.0 i386
 MIT Kerberos 5 1.2.6
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+
 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
 MIT Kerberos 5 1.1
MIT Kerberos 5 1.0.6
MIT Kerberos 5 1.0
Not Vulnerable:

Discussion

MIT Kerberos 5 Principal Name Buffer Underrun Vulnerability

A buffer underrun vulnerability has been discovered in Kerberos when handling principal names. Though precide details are not yet known, the problem likely occurs due to unexpected results when calculating static values with user-supplied values. This condition could be triggered if an attacker were to trigger a calculation causing an unexpected wrapped value to be returned.

Successful exploitation of this issue may result in an attacker gaining the ability to corrupt memory and thus execute arbitrary code on an affected Key Distribution Center (KDC) server. The exploitability of this issue to execute commands may be highly dependant on dynamic memory implementation.

Exploit / POC

MIT Kerberos 5 Principal Name Buffer Underrun 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

MIT Kerberos 5 Principal Name Buffer Underrun Vulnerability

Solution:
Debian has released a security advisory [DSA 266-1] containing fixes for
this issue.

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

Sun has released alert 54042 to address this issue.

The following fixes are available:


Sun Solaris 9

Sun Solaris 9_x86

Sun Solaris 8_x86

Sun Solaris 8_sparc

MIT Kerberos 5 1.0

Sun SEAM 1.0

Sun SEAM 1.0.1

Sun SEAM 1.0.2

MIT Kerberos 5 1.0.6

MIT Kerberos 5 1.1

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

MIT Kerberos 5 1.2.5

MIT Kerberos 5 1.2.6

MIT Kerberos 5 1.2.7

MIT Kerberos 5 1.3 -alpha1

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