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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
(NetBSD Issues Fix) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
SecurityTracker Alert ID:  1027314
SecurityTracker URL:  http://securitytracker.com/id/1027314
CVE Reference:   CVE-2012-3817   (Links to External Site)
Date:  Jul 26 2012
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.6-ESV-R1 through 9.6-ESV-R7-P1; 9.7.1 through 9.7.6-P1; 9.8.0 through 9.8.3-P1; 9.9.0 through 9.9.1-P1
Description:   A vulnerability was reported in BIND. A remote user can cause denial of service conditions.

On systems configured for DNSSEC validation, a remote user can cause the cache of failing queries to be used before fully initialized, triggering an assertion failure.

Einar Lonn of IIS.se reported this vulnerability.

Impact:   A remote user can cause the target system to crash.
Solution:   NetBSD has issued a fix.

The NetBSD advisory is available at:

http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2012-004.txt.asc

Vendor URL:  kb.isc.org/article/AA-00729 (Links to External Site)
Cause:   State error
Underlying OS:  UNIX (NetBSD)
Underlying OS Comments:  4.0, 4.0.*, 5.0, 5.1

Message History:   This archive entry is a follow-up to the message listed below.
Jul 25 2012 BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service



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