MIT Kerberos 5 Multiple Double-Free Vulnerabilities

BID:11078

Info

MIT Kerberos 5 Multiple Double-Free Vulnerabilities

Bugtraq ID: 11078
Class: Design Error
CVE: CVE-2004-0642
CVE-2004-0772
CVE-2004-0643
Remote: Yes
Local: No
Published: Aug 31 2004 12:00AM
Updated: Jul 12 2009 07:06AM
Credit: Will Fiveash and Nico Williams from Sun, Marc Horowitz, Nalin Dahyabhai, Joseph Galbraith, and John Hawkinson are all credited for discovery, patches, and information for these vulnerabilities.
Vulnerable: Turbolinux Turbolinux Server 8.0
Turbolinux Turbolinux Desktop 10.0
Turbolinux Appliance Server Workgroup Edition 1.0
Turbolinux Appliance Server Hosting Edition 1.0
Sun Solaris 9_x86
Sun Solaris 9
Sun SEAM 1.0.2
+ Sun Solaris 9_x86
 + Sun Solaris 9
 Redhat Linux 9.0 i386
Redhat Linux 7.3 i686
Redhat Linux 7.3 i386
Redhat Linux 7.3
Redhat Fedora Core2
Redhat Fedora Core1
Redhat Enterprise Linux WS 3
Redhat Enterprise Linux ES 3
Redhat Enterprise Linux AS 3
Redhat Desktop 3.0
OpenPKG OpenPKG 2.1
OpenPKG OpenPKG 2.0
OpenPKG OpenPKG Current
MIT Kerberos 5 1.3.4
+ Mandriva Linux Mandrake 10.1 x86_64
 + Mandriva Linux Mandrake 10.1
+ Turbolinux Turbolinux Server 10.0
MIT Kerberos 5 1.3.3
MIT Kerberos 5 1.3.2
MIT Kerberos 5 1.3.1
MIT Kerberos 5 1.3 -alpha1
MIT Kerberos 5 1.3
+ Mandriva Linux Mandrake 10.0 AMD64
 + Mandriva Linux Mandrake 10.0
+ Mandriva Linux Mandrake 9.2 amd64
 + Mandriva Linux Mandrake 9.2
MIT Kerberos 5 1.2.8
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 -beta1
MIT Kerberos 5 1.2.2
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 1.0.8
MIT Kerberos 5 1.0.6
MIT Kerberos 5 1.0
Mandriva Linux Mandrake 10.0 AMD64
Mandriva Linux Mandrake 10.0
Mandriva Linux Mandrake 9.2 amd64
Mandriva Linux Mandrake 9.2
Mandriva Linux Mandrake 9.1 ppc
Mandriva Linux Mandrake 9.1
MandrakeSoft Multi Network Firewall 2.0
MandrakeSoft Corporate Server 2.1 x86_64
MandrakeSoft Corporate Server 2.1
IBM Tivoli Access Manager for e-business 5.1
IBM AIX 5.3 L
IBM AIX 5.2.2
IBM AIX 5.2 L
IBM AIX 5.1 L
IBM AIX 5.2
IBM AIX 5.1
Gentoo Linux 1.4 _rc3
Gentoo Linux 1.4 _rc2
Gentoo Linux 1.4 _rc1
Gentoo Linux 1.4
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
Cisco VPN 3000 Concentrator 4.1 .x
Cisco VPN 3000 Concentrator 4.0.1
Cisco VPN 3000 Concentrator 4.0 .x
Cisco VPN 3000 Concentrator 4.0
Avaya S8700 R2.0.1
Avaya S8700 R2.0.0
Avaya S8500 R2.0.1
Avaya S8500 R2.0.0
Avaya S8300 R2.0.1
Avaya S8300 R2.0.0
Avaya Integrated Management
Avaya Converged Communications Server 2.0
Apple Mac OS X Server 10.3.6
Apple Mac OS X Server 10.3.5
Apple Mac OS X Server 10.3.4
Apple Mac OS X Server 10.3.3
Apple Mac OS X Server 10.3.2
Apple Mac OS X Server 10.3.1
Apple Mac OS X Server 10.3
Apple Mac OS X Server 10.2.8
Apple Mac OS X Server 10.2.7
Apple Mac OS X Server 10.2.6
Apple Mac OS X Server 10.2.5
Apple Mac OS X Server 10.2.4
Apple Mac OS X Server 10.2.3
Apple Mac OS X Server 10.2.2
Apple Mac OS X Server 10.2.1
Apple Mac OS X Server 10.2
Apple Mac OS X 10.3.6
Apple Mac OS X 10.3.5
Apple Mac OS X 10.3.4
Apple Mac OS X 10.3.3
Apple Mac OS X 10.3.2
Apple Mac OS X 10.3.1
Apple Mac OS X 10.3
Apple Mac OS X 10.2.8
Apple Mac OS X 10.2.7
Apple Mac OS X 10.2.6
Apple Mac OS X 10.2.5
Apple Mac OS X 10.2.4
Apple Mac OS X 10.2.3
Apple Mac OS X 10.2.2
Apple Mac OS X 10.2.1
Apple Mac OS X 10.2
Not Vulnerable: MIT Kerberos 5 1.3.5
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
Cisco VPN 3000 Concentrator 4.1.5 .B
Cisco VPN 3000 Concentrator 4.0.5 .B

Discussion

MIT Kerberos 5 Multiple Double-Free Vulnerabilities

There are multiple double-free vulnerabilities reported to exist in MIT Kerberos 5.

All vulnerabilities stem from inconsistent memory handling routines in the krb5 library.

These vulnerabilities are exploitable in various ways:
- An attacker can execute arbitrary code in the context of a KDC server process, potentially compromising the entire Kerberos realm.
- An attacker can execute arbitrary code in the context of a krb524d server process, potentially compromising the entire Kerberos realm if it is running on the same computer as a KDC.
- An attacker can execute arbitrary code in the context of various other server processes utilizing the krb5 library.
- An attacker impersonating a KDC or application server may be able to execute arbitrary code in the context of a client process attempting to authenticate.

Versions up to and including 1.3.4 are reported vulnerable.

Update: IBM has reported that IBM Tivoli Access Manager for e-business version 5.1 is vulnerable to CAN-2004-0642 and CAN-2004-0643 when configured for single sign on using SPNEGO authentication.

Exploit / POC

MIT Kerberos 5 Multiple Double-Free Vulnerabilities

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 Multiple Double-Free Vulnerabilities

Solution:
The vendor has released an advisory (MITKRB5-SA-2004-002) along with patches to resolve these issues. Please see the referenced advisory for further information.

Debian GNU/Linux has released an advisory (DSA 543-1) along with fixes to address these and other issues. Please see the referenced advisory for further information.

RedHat Linux has released advisory RHSA-2004:350-12 along with fixes to address these and other issues in RedHat Enterprise Linux operating systems. Please see the referenced advisory for further information.

RedHat Linux has released advisories (FEDORA-2004-276, and FEDORA-2004-277) to address these and other issues for RedHat Fedora Core 1 and 2 respectively. Please see the referenced advisories for further information.

Cisco has released an advisory (cisco-sa-20040831-krb5) to address these and other issues for Cisco VPN 3000 series products. Please see the referenced advisory for further information on obtaining fixes.

Mandrake has released an advisory (MDKSA-2004:088) and fixes to address these issues. Please see the referenced advisory for further information on obtaining fixes.

Trustix has released an advisory (TSL-2004-0045) to address various issues in kerberos5. Please see the referenced advisory for more information.

Gentoo advisory available. Users are advised to upgrade by performing the following steps:
emerge sync
emerge -pv ">=app-crypt/mit-krb5-1.3.4"
emerge ">=app-crypt/mit-krb5-1.3.4"

Conectiva has made advisory CLSA-2004:860 along with fixes available resolving these and other issues. Please see the referenced advisory for more information.

Avaya has released advisory ASA-2004-039 dealing with these issues. Please see the referenced web advisory for more information.

OpenPKG has released advisory OpenPKG-SA-2004.039 to address these, and other issues. Please see the referenced advisory for further information.

Turbolinux has released advisory TLSA-2004-22 to address these, and other issues. Please see the referenced advisory for further information.

Sun has released Security Alert ID 57631 along with fixes for these issues. Please see the web reference for more information. On 24 Sept 2004, Sun withdrew patch 112908-15. On 28 Sept 2004, the patch has become available again with an updated Security Alert.

IBM has released an advisory (2004-09-30-ASN.1) to address these issues in AIX. Please see the referenced advisory for more information about obtaining fixes.

IBM has released information about some of these issues affecting IBM Tivoli Access Manager for e-business version 5.1. Please see the IBM 'MIT Kerberos 5 Vulnerabilities' reference in Web references for more information about obtaining fixes.

Apple has released an advisory (APPLE-SA-2004-12-02) dealing with this and other issues. Please see the referenced advisory for more information.

Fedora Legacy has released security advisory FLSA:154276 addressing this issue for RedHat Linux 7.3 and 9, and for Fedora Core 1. Please see the referenced advisory for details on obtaining and applying the appropriate updates.


Sun SEAM 1.0.2

MIT Kerberos 5 1.2.4

MIT Kerberos 5 1.2.5

MIT Kerberos 5 1.2.7

MIT Kerberos 5 1.2.8

MIT Kerberos 5 1.3

MIT Kerberos 5 1.3.1

MIT Kerberos 5 1.3.3

MIT Kerberos 5 1.3.4

Apple Mac OS X 10.2

Apple Mac OS X 10.2.1

Apple Mac OS X 10.2.2

Apple Mac OS X 10.2.3

Apple Mac OS X 10.2.4

Apple Mac OS X 10.2.5

Apple Mac OS X 10.2.7

Apple Mac OS X 10.3

Apple Mac OS X 10.3.1

Apple Mac OS X 10.3.2

Apple Mac OS X 10.3.3

Apple Mac OS X 10.3.5

Apple Mac OS X Server 10.3.6

IBM Tivoli Access Manager for e-business 5.1

References

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