Spyware, viruses, & security forum: VULNERABILITIES / FIXES - December 05, 2012

by: Carol~ December 5, 2012 11:53 AM PST

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VULNERABILITIES / FIXES - December 05, 2012

by Carol~ Moderator - 12/5/12 11:53 AM

ISC BIND DNS64 REQUIRE Assertion Failure Denial of Service Vulnerability

Release Date : 2012-12-05

Criticality level : Moderately critical
Impact : DoS
Where : From remote
Solution Status : Vendor Patch

Software: ISC BIND 9.8.x
ISC BIND 9.9.x

Description:
A vulnerability has been reported in ISC BIND, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the DNS64 IPv6 transition mechanism when handling certain queries, which can be exploited to trigger a REQUIRE assertion and crash the server via a specially crafted DNS query.

Successful exploitation requires that DNS64 is turned on.

The vulnerability is reported in versions 9.8.0 through 9.8.4 and 9.9.0 through 9.9.2.

Solution:
Update to version 9.8.4-P1 or 9.9.2-P1.

Provided and/or discovered by:
The vendor credits BlueCat Networks.

Original Advisory:
https://kb.isc.org/article/AA-00828
https://www.isc.org/software/bind/advisories/cve-2012-5688

http://secunia.com/advisories/51484/

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