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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
(HP Issues Fix for HP-UX) BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1031584
SecurityTracker URL:  http://securitytracker.com/id/1031584
CVE Reference:   CVE-2011-1910   (Links to External Site)
Date:  Jan 21 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 9.4-ESV-R3 and later, 9.6-ESV-R2 and later, 9.6.3, 9.7.1 and later, 9.8.0 and later; prior to 9.4-ESV-R4-P1, 9.6-ESV-R4-P1, 9.7.3-P1, 9.8.0-P2
Description:   A vulnerability was reported in BIND. A remote user can cause denial of service conditions.

A remote DNS server can supply very large RRSIG RRsets in a negative response to trigger an off-by-one error in a buffer size check and cause the target requesting named process to crash.

Impact:   A remote user can cause named to crash.
Solution:   HP has issued a fix for HP-UX.

The HP advisory is available at:

http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04550240

Vendor URL:  www.isc.org/software/bind/advisories/cve-2011-1910 (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (HP/UX)
Underlying OS Comments:  B.11.31

Message History:   This archive entry is a follow-up to the message listed below.
May 27 2011 BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users Deny Service



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