An error processing RPZ rules can cause named to loop endlessly after handling a query
Vulnerability Description
If named is configured to use Response Policy Zones (RPZ) an error processing some rule types can lead to a condition where BIND will endlessly loop while handling a query. Affects BIND 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- ISC would like to thank Oli Schacher of Switch for bringing this defect to our attention.
References
- http://www.securitytracker.com/id/1038692
- https://security.gentoo.org/glsa/201708-01
- http://www.securityfocus.com/bid/99088
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03772en_us
- https://security.netapp.com/advisory/ntap-20180926-0001/
- https://kb.isc.org/docs/aa-01495
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Affected Software
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CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.