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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
SecurityTracker Alert ID:  1032799
SecurityTracker URL:  http://securitytracker.com/id/1032799
CVE Reference:   CVE-2015-4620   (Links to External Site)
Date:  Jul 7 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.7.1 - 9.7.7, 9.8.0 - 9.8.8, 9.9.0 - 9.9.7, 9.10.0 - 9.10.2-P1
Description:   A vulnerability was reported in ISC BIND. A remote user can cause the target service to crash.

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:   The vendor has issued a fix (9.9.7-P1, 9.10.2-P2).

The vendor's advisory is available at:

https://kb.isc.org/article/AA-01267

Vendor URL:  kb.isc.org/article/AA-01267 (Links to External Site)
Cause:   Input validation error, State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 7 2015 (Ubuntu Issues Fix) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
Ubuntu has issued a fix for Ubuntu 12.04 LTS, 14.04 LTS, 14.10, and 15.04.
Jul 8 2015 (FreeBSD Issues Fix) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
FreeBSD has issued a fix for FreeBSD 8.4 and 9.3.
Jul 16 2015 (McAfee Issues Fix for McAfee Firewall Enterprise) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
McAfee has issued a fix for McAfee Firewall Enterprise.
Jul 20 2015 (Red Hat Issues Fix) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
Red Hat has issued a fix for Red Hat Enterprise Linux 7.
Jul 20 2015 (CentOS Issues Fix) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
CentOS has issued a fix for CentOS 7.
Jul 20 2015 (Oracle Linux Issues Fix) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
Oracle has issued a fix for Oracle Linux 7.
Jul 22 2015 (Red Hat Issues Fix) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Jul 24 2015 (HP Issues Fix for HP-UX) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
HP has issued a fix for HP-UX B.11.31.
Jul 29 2015 (F5 Networks Issues Advisory for F5 BIG-IP) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
F5 Networks has issued an advisory for F5 BIG-IP.
Jul 31 2015 (Oracle Issues Fix for Oracle Linux) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
Oracle has issued a fix for Oracle Linux 7.
Dec 1 2015 (Brocade Communications Systems Issues Fix for Brocade Switch) ISC BIND DNSSEC Validation Flaw Lets Remote Users Deny Service in Certain Cases
Brocade Communications Systems has issued a fix for Brocade 5400/5600 vRouters.



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