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Category:   Device (Router/Bridge/Hub)  >   F5 BIG-IP Vendors:   F5 Networks
(F5 Issues Fix for BIG-IP) BIND RRSIG RRsets Negative Caching Off-by-one Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1025851
SecurityTracker URL:  http://securitytracker.com/id/1025851
CVE Reference:   CVE-2011-1910   (Links to External Site)
Date:  Jul 27 2011
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in BIND. A remote user can cause denial of service conditions. F5 BIG-IP is affected.

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:   F5 has issued a fix for BIG-IP.

The F5 advisory is available at:

http://support.f5.com/kb/en-us/solutions/public/12000/900/sol12985.html

Vendor URL:  www.isc.org/software/bind/advisories/cve-2011-1910 (Links to External Site)
Cause:   Access control error

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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