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ISC BIND update-policy Enforcement Vulnerability - CVE-2020-8624 (Linux)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
ISC BIND is prone to a vulnerability where update-policy rules of type 'subdomain' are enforced incorrectly.
Insight
Insight
Change 4885 inadvertently caused 'update-policy' rules of type 'subdomain' to be treated as if they were of type 'zonesub', allowing updates to all parts of the zone along with the intended subdomain.
Affected Software
Affected Software
BIND 9.9.12 - 9.9.13, 9.10.7 - 9.10.8, 9.11.3 - 9.11.21, 9.12.1 - 9.16.5, 9.17.0 - 9.17.3, also affects 9.9.12-S1 - 9.9.13-S1 and 9.11.3-S1 - 9.11.21-S1.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 9.11.22, 9.16.6, 9.17.4, 9.11.22-S1 or later.