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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

Overview

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

Description

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.

Impact

A loss of confidentiality in cache data exists.

Solution

Upgrade to BIND 9.7.2-P2

Vendor Information

784855
 

CVSS Metrics

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References

Acknowledgements

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: 8

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