ISC BIND Denial of Service Vulnerabilities - Secunia Advisories - Vulnerability Intelligence

ISC BIND Denial of Service Vulnerabilities
Secunia Advisory:	SA23904	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2007-01-25
Last Update:	2007-05-31
Popularity:	12,371 views

Critical:	Less critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

Software:	ISC BIND 9.2.x ISC BIND 9.3.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2007-0493 CVE-2007-0494

Description: Some vulnerabilities have been reported in ISC BIND, which can be exploited by malicious people to cause a DoS (Denial of Service). 1) An unspecified error may cause the named daemon to dereference a freed fetch context. Successful exploitation crashes the named daemon. 2) It is possible to trigger assertion checks when validating responses to type ANY queries with multiple RRsets. Successful exploitation requires that DNSSEC validation is enabled by specifying trusted-keys in the named.conf file. Solution: Update to version 9.2.8 or 9.3.4. The vulnerability has also been fixed in version 9.4.0rc2. Provided and/or discovered by: Reported by the vendor. Changelog: 2007-01-26: Added CVE references. 2007-01-30: Updated advisory with additional information. 2007-05-31: Added additional link. Original Advisory: http://www.isc.org/index.pl?/sw/bind/bind-security.php http://www.isc.org/index.pl?/sw/bind/view/?release=9.2.8 http://www.isc.org/index.pl?/sw/bind/view/?release=9.3.4 http://marc.theaimsgroup.com/?l=bind-announce&m=116968519321296&w=2 http://marc.info/?l=bind-announce&m=116968519300764&w=2

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