BIND Validator Self Checking Remote Denial Of Service Vulnerability

BID:12365

Info

BIND Validator Self Checking Remote Denial Of Service Vulnerability

Bugtraq ID: 12365
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2005-0034
Remote: Yes
Local: No
Published: Jan 26 2005 12:00AM
Updated: Jul 12 2009 10:06AM
Credit: Joao Damas of the Internet Systems Consortium is credited with the disclosure of this issue.
Vulnerable: Trustix Secure Linux 2.2
Trustix Secure Linux 2.1
Trustix Secure Linux 1.5
Trustix Secure Enterprise Linux 2.0
Mandriva Linux Mandrake 10.1 x86_64
Mandriva Linux Mandrake 10.1
ISC BIND 9.3
FreeBSD FreeBSD 5.3 -STABLE
FreeBSD FreeBSD 5.3 -RELENG
FreeBSD FreeBSD 5.3 -RELEASE
FreeBSD FreeBSD 5.3
FreeBSD FreeBSD 5.0 -RELENG
Not Vulnerable: ISC BIND 9.3.1

Discussion

BIND Validator Self Checking Remote Denial Of Service Vulnerability

A remote denial of service vulnerability affects BIND. This issue is due to a failure of the application to handle exceptional network data.

It should be noted that this issue requires that DNSSEC validation is enabled, which is not the case by default.

A remote attacker may leverage this issue to cause the affected server to crash, denying service to legitimate users.

Exploit / POC

BIND Validator Self Checking Remote Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

BIND Validator Self Checking Remote Denial Of Service Vulnerability

Solution:
The vendor has released an upgrade dealing with this issue.

Mandrake Linux have released an advisory (MDKSA-2005:023) and fixes to address this vulnerability. Customers are advised to read the referenced advisory for further information in regards to obtaining and applying appropriate updates.

Trustix has released advisory TSLSA-2005-0003 to address various issues in multiple products. Please see the referenced advisory for more information.

FreeBSD has released advisory FreeBSD-SA-05:12.bind9, along with a patch to address this issue. Please see the referenced advisory for further information.


FreeBSD FreeBSD 5.3 -RELEASE

FreeBSD FreeBSD 5.3 -RELENG

FreeBSD FreeBSD 5.3

FreeBSD FreeBSD 5.3 -STABLE

ISC BIND 9.3

References

BIND Validator Self Checking Remote Denial Of Service Vulnerability

References:
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