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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
SecurityTracker Alert ID:  1027296
SecurityTracker URL:  http://securitytracker.com/id/1027296
CVE Reference:   CVE-2012-3817   (Links to External Site)
Date:  Jul 25 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:   The vendor has issued a fix (9.9.1-P2, 9.8.3-P2, 9.7.6-P2, 9.6-ESV-R7-P2).

The vendor's advisory is available at:

https://kb.isc.org/article/AA-00729

Vendor URL:  kb.isc.org/article/AA-00729 (Links to External Site)
Cause:   State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 26 2012 (Infoblox Issues Advisory) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
Infoblox has issued an advisory.
Jul 26 2012 (NetBSD Issues Fix) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
NetBSD has issued a fix.
Jul 31 2012 (Red Hat Issues Fix) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Jul 31 2012 (Red Hat Issues Fix) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 5 and 6.
Aug 7 2012 (FreeBSD Issues Fix) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
FreeBSD has issued a fix.
Aug 13 2012 (McAfee Issues Fix for McAfee Firewall Enterprise (Sidewinder)) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
McAfee has issued a fix for McAfee Firewall Enterprise (Sidewinder).
Apr 11 2013 (Oracle Issues Fix for Solaris) BIND DNSSEC Validation Cache Failure Lets Remote Users Deny Service
Oracle has issued a fix for Solaris 9, 10, and 11.



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