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CERT Coordination Center

Unexpected ACL Behavior in BIND 9.7.2

Vulnerability Note VU#784855

Original Release Date: 2010-09-30 | Last Revised: 2010-09-30


A flaw exists in BIND 9.7.2 through 9.7.2-P1 pertaining to how an ACL is applied.


There is a flaw in BIND 9.7.2 through 9.7.2-P1 where the wrong ACL is applied. This flaw could allow access to a cache via recursion even though the ACL disallowed it. This bug is primarily a risk to operators running both authoritative and recursive DNS on the same BIND server in the same view.


A loss of confidentiality in cache data exists.


Upgrade to BIND 9.7.2-P2

Vendor Information

Affected   Unknown   Unaffected

Internet Systems Consortium

Notified:  September 28, 2010 Updated:  September 30, 2010



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

Vendor References

CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A



This document was written by Jared Allar.

Other Information

CVE IDs: CVE-2010-0218
Severity Metric: 0.01
Date Public: 2010-09-28
Date First Published: 2010-09-30
Date Last Updated: 2010-09-30 13:49 UTC
Document Revision: 7

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