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ISC BIND DNS64 and RPZ Denial of Service Vulnerability
Information
Severity
Severity
Medium
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
4.3
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
5 years ago
Modified
Modified
3 years ago
Summary
The host is installed with ISC BIND and is prone to denial of service vulnerability.
Insight
Insight
The flaw exists due to using both DNS64 and RPZ to rewrite query responses, query processing can resume in an inconsistent state.
Affected Software
Affected Software
ISC BIND versions 9.8.8, 9.9.3-S1 through 9.9.9-S7, 9.9.3 through 9.9.9-P5, 9.9.10b1, 9.10.0 through 9.10.4-P5, 9.10.5b1, 9.11.0 through 9.11.0-P2 and 9.11.1b1
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to ISC BIND version 9.9.9-P6 or 9.10.4-P6 or 9.11.0-P3 or 9.9.9-S8 or later.