CVE-2002-0400: DoS internal consistency check (DoS_findtype)

AA-00950

A logic error can cause server failure, disabling name service.

Posting date: 
04 Jun 2002
Program Impacted: 
BIND
Versions affected: 
9.0 - 9.2.0
Severity: 
Serious
Exploitable: 
Remotely

Description:

BIND 9 before 9.2.1 allows remote attackers to cause a denial of service (shutdown) via a malformed DNS packet that triggers an error condition that is not properly handled when the rdataset parameter to the dns_message_findtype() function in message.c is not NULL, aka DoS_findtype.

Workarounds:

None.

Active exploits:

None known at this time.

Solution:

Upgrade to BIND 9.2.1 or later.

Related Documents:

See our BIND Security Matrix for a complete listing of Security Vulnerabilities and versions affected.

If you'd like more information on our Forum or product support please visit www.isc.org/support.

Do you still have questions?  Questions regarding this advisory should go to security-officer@isc.org

Note: ISC patches only currently supported versions. When possible we indicate EOL versions affected.

ISC Security Vulnerability Disclosure Policy:  Details of our current security advisory policy and practice can be found here: https://www.isc.org/security-vulnerability-disclosure-policy

This Knowledge Base article https://kb.isc.org/article/AA-00950 is the complete and official security advisory document.

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