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VID 19084
Severity 30
Port 53
Protocol UDP
Class DNS
Detailed Description According to its self-reported version, the instance of ISC BIND 9 running on the remote name server is 9.12.0 or 9.12.1. It is, therefore, affected by an assertion failure vulnerability which exists in the rbtdb.c due to the implementation of the new serve-stale feature and NSEC aggressive negative caching.

* Note: This check solely relied on the banner of the remote DNS server to assess this vulnerability, so this might be a false positive.

* References:
https://kb.isc.org/docs/AA-01602
* Platforms Affected:
Internet Software Consortium, BIND version 9.12.x < 9.12.1-P2
Any operating system Any version
Recommendation Upgrade to the latest version of BIND (9.12.1-P2 or later), available from the Internet Software Consortium (ISC) Web site at http://www.isc.org/downloads/BIND/
Related URL CVE-2018-5737 (CVE)
Related URL 104236 (SecurityFocus)
Related URL (ISS)