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Category:   Device (Router/Bridge/Hub)  >   Brocade Switch Vendors:   Brocade Communications Systems
(Brocade Communications Systems Issues Fix for Brocade Switch) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
SecurityTracker Alert ID:  1034273
SecurityTracker URL:  http://securitytracker.com/id/1034273
CVE Reference:   CVE-2015-4620   (Links to External Site)
Date:  Dec 1 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5400 vRouter prior to 6.7R10, 5600 vRouter prior to 3.5R5
Description:   A vulnerability was reported in ISC BIND. A remote user can cause the target service to crash. Brocade 5400/5600 vRouters are affected.

A remote user can send a query to the target service for a DNS zone that contains specially crafted zone data to cause the target recursive resolver to crash.

Recursive resolvers that perform DNSSEC validation are affected.

Breno Silveira Soares of Servico Federal de Processamento de Dados (SERPRO) reported this vulnerability.

Impact:   A remote user can cause the target recursive resolver service to crash.
Solution:   Brocade Communications Systems has issued a fix for CVE-2015-4620 for Brocade 5400 (6.7R10) and 5600 (3.5R5) series vRouters.

The Brocade Communications Systems advisory is available at:

http://www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2015-009.pdf

Vendor URL:  www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2015-009.pdf (Links to External Site)
Cause:   Input validation error, State error

Message History:   This archive entry is a follow-up to the message listed below.
Jul 7 2015 ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases



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