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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
(IBM Issues Fix) BIND Query Processing Bugs Let Remote Users Deny Service
SecurityTracker Alert ID:  1016800
SecurityTracker URL:
CVE Reference:   CVE-2006-4095, CVE-2006-4096   (Links to External Site)
Date:  Sep 7 2006
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.3.2 and prior versions
Description:   A vulnerability was reported in BIND. A remote user can cause denial of service conditions.

A remote user (DNS server) can send specially crafted RRset responses in return to a recursive SIG query to cause the requesting named service to crash [CVE-2006-4095].

A remote user can also send specially crafted queries to trigger an INSIST failure and cause the requesting service(s) to crash [CVE-2006-4096].

Impact:   A remote user can cause the target named service to crash.
Solution:   IBM is developing the following fixes:

APAR number for AIX 5.2.0: IY89178 (available approx. 10/18/06)
APAR number for AIX 5.3.0: IY89169 (available approx. 10/04/06)

Interim fixes are available at:

Vendor URL: (Links to External Site)
Cause:   Exception handling error, Input validation error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.2, 5.3

Message History:   This archive entry is a follow-up to the message listed below.
Sep 5 2006 BIND Query Processing Bugs Let Remote Users Deny Service

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