ISC BIND Query_AddSOA Denial Of Service Vulnerability

BID:23738

Info

ISC BIND Query_AddSOA Denial Of Service Vulnerability

Bugtraq ID: 23738
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2007-2241
Remote: Yes
Local: No
Published: May 01 2007 12:00AM
Updated: Mar 13 2008 02:21AM
Credit: The vendor disclosed this issue.
Vulnerable: Redhat Fedora 7
OpenPKG OpenPKG Stable
OpenPKG OpenPKG E1.0-Solid
OpenPKG OpenPKG Current
Mandriva Linux Mandrake 2007.1 x86_64
Mandriva Linux Mandrake 2007.1
ISC BIND 9.5 a2
ISC BIND 9.5 a1
ISC BIND 9.4
ISC BIND 9.5.0a3
Not Vulnerable: ISC BIND 9.4.1
ISC BIND 9.5.0a4

Discussion

ISC BIND Query_AddSOA Denial Of Service Vulnerability

ISC BIND is prone to a denial-of-service vulnerability because it fails to handle certain sequences of malicious queries.

NOTE: Only applications configured with the 'recursion' directive/attribute enabled are vulnerable to this issue.

An attacker can exploit this issue to cause the application to exit, denying service to legitimate users.

ISC BIND 9.40, 9.5.0a1, 9.5.0a2, and 9.5.0a3 are vulnerable.

Exploit / POC

ISC BIND Query_AddSOA Denial Of Service Vulnerability

To exploit this issue, an attacker must be able to execute queries on a vulnerable BIND server.

Solution / Fix

ISC BIND Query_AddSOA Denial Of Service Vulnerability

Solution:
The vendor has released fixes to address this issue. Please see the references for more information.


ISC BIND 9.4

References

ISC BIND Query_AddSOA Denial Of Service Vulnerability

References:
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