CVE-2018-5737

A problem with the implementation of the new serve-stale feature in BIND 9.12 can lead to an assertion failure in rbtdb.c, even when stale-answer-enable is off. Additionally, problematic interaction between the serve-stale feature and NSEC aggressive negative caching can in some cases cause undesirable behavior from named, such as a recursion loop or excessive logging. Deliberate exploitation of this condition could cause operational problems depending on the particular manifestation -- either degradation or denial of service. Affects BIND 9.12.0 and 9.12.1.

• CWE-617

• http://www.securityfocus.com/bid/104236Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040942Third Party Advisory, VDB Entry
• https://kb.isc.org/docs/aa-01606Vendor Advisory
• https://security.netapp.com/advisory/ntap-20180926-0004/Third Party Advisory
• http://www.securityfocus.com/bid/104236Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040942Third Party Advisory, VDB Entry
• https://kb.isc.org/docs/aa-01606Vendor Advisory
• https://security.netapp.com/advisory/ntap-20180926-0004/Third Party Advisory

Published

Jan 16, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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