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Category:   Application (Security)  >   Kerberos Vendors:   MIT
(HP Issues Fix) Kerberos ASN.1 Decoding Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1022625
SecurityTracker URL:
CVE Reference:   CVE-2009-0847   (Links to External Site)
Updated:  Oct 1 2009
Original Entry Date:  Jul 30 2009
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5-1.6.3
Description:   A vulnerability was reported in Kerberos. A remote user can cause denial of service conditions against a KDC or kinit program.

A remote user can exploit a flaw in the asn1buf_imbed() function to trigger a memory allocation error or, in some cases, trigger a crash.

Impact:   A remote user can cause the target KDC or kinit program to crash.
Solution:   HP has issued a fix for Kerberos Web Update (KRB5CLIENT).

B.11.11 (11i v1): KRB5CLIENT_C. or subsequent
B.11.23 (11i v2): KRB5CLIENT_D. or subsequent
B.11.31 (11i v3): KRB5CLIENT_E. or subsequent

HP has issued a fix for Core-OS (KRB5-Client).

B.11.11 (11i v1): PHSS_39774 or subsequent
B.11.23 (11i v2): PHSS_39765 or subsequent
B.11.31 (11i v3): PHSS_39766 or subsequent

The HP advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  UNIX (HP/UX)
Underlying OS Comments:  11.11, 11.23, 11.31

Message History:   This archive entry is a follow-up to the message listed below.
Apr 7 2009 Kerberos ASN.1 Decoding Bug Lets Remote Users Deny Service

 Source Message Contents

[Original Message Not Available for Viewing]

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