CVE-2018-5737

BIND 9.12's serve-stale implementation can cause an assertion failure in rbtdb.c or other undesirable behavior, even if serve-stale is not enabled.

State: Published
Severity: 5.9 Medium
Published: Jan 16, 2019
Updated: Sep 16, 2024
Reserved: Jan 17, 2018

Read the record on cve.org

Description

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.

Scores

CVSS	Score	Vector	Source
3.0	5.9 Medium	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	isc

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
BIND 9ISC	9.12.0 and 9.12.1Affected

References

104236vdb-entry
https://kb.isc.org/docs/aa-01606
1040942vdb-entry
https://security.netapp.com/advisory/ntap-20180926-0004/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.