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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
SecurityTracker Alert ID:  1022613
SecurityTracker URL:  http://securitytracker.com/id/1022613
CVE Reference:   CVE-2009-0696   (Links to External Site)
Date:  Jul 29 2009
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 9.4 prior to 9.4.3-P3, 9.5 prior to 9.5.1-P3, 9.6 prior to 9.6.1-P1
Description:   A vulnerability was reported in BIND. A remote user can cause denial of service conditions.

A remote user can send a specially crafted dynamic update message to a target DNS server that is a master for one or more DNS zones to cause the target DNS service to crash. Slave zones are not affected.

The flaw resides in dns_db_findrdataset() in 'db.c'.

This vulnerability is being actively exploited.

Matthias Urlichs reported this vulnerability.

Impact:   A remote user can cause the target DNS service to crash.
Solution:   The vendor has issued a fix (9.4.3-P3, 9.5.1-P3, 9.6.1-P1), available at:

http://ftp.isc.org/isc/bind9/9.6.1-P1/bind-9.6.1-P1.tar.gz

http://ftp.isc.org/isc/bind9/9.5.1-P3/bind-9.5.1-P3.tar.gz

http://ftp.isc.org/isc/bind9/9.4.3-P3/bind-9.4.3-P3.tar.gz

The vendor's advisory is available at:

https://www.isc.org/node/474

Vendor URL:  www.isc.org/node/474 (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 29 2009 (FreeBSD Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
FreeBSD has released a fix.
Jul 29 2009 (NetBSD Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
NetBSD has issued a fix.
Jul 29 2009 (OpenBSD Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
OpenBSD has issued a fix.
Jul 30 2009 (Red Hat Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 5.
Jul 30 2009 (Red Hat Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 4.
Jul 30 2009 (Red Hat Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 3.
Jul 30 2009 (Sun Issues T-Patches) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
Sun has issued T-Patches for Solaris 10.
Aug 6 2009 (IBM Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
IBM has issued a fix for AIX 5.3 and 6.1.
Aug 7 2009 (HP Issues Fix for OpenVMS) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
HP has issued a fix for OpenVMS 5.4, 5.5, and 5.6.
Aug 7 2009 (HP Issues Fix for HP-UX) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
HP has issued a fix for HP-UX 11.11, 11.23, and 11.31.
Aug 7 2009 (HP Issues Fix for Tru64) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
HP has released a fix for Tru64 UNIX 5.1B BL27 and 5.1B BL28.
Aug 12 2009 (Novell Issues Fix for NetWare DNS Server) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
Novell has issued a fix for NetWare DNS Server 6.5.
Aug 13 2009 (Apple Issues Fix) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
Apple has released a fix for Mac OS X.
Sep 21 2009 (HP Issues Fix for HP NonStop Server) BIND Dynamic Update Bug in dns_db_findrdataset() Lets Remote Users Deny Service
HP has issued a fix for HP NonStop Server.



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