CVE-2018-5737

Name: CVE-2018-5737
Creator: NVD / NIST
Published: 2019-01-16T20:29:00.877+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 10.36%

Last modified Jun 17, 2026

CVE-2018-5737 is a vulnerability of currently unknown severity. 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. EPSS estimates a 10.36% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

10.36%

95.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Isc	Bind	9.12.0
Isc	Bind	9.12.1
Netapp	Cloud Backup	All versions
Netapp	Data Ontap Edge	All versions

References

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

Timeline

Published: Jan 16, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5737?

How severe is CVE-2018-5737?

Severity scoring for CVE-2018-5737 is pending analysis. The EPSS model estimates a 10.36% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5737?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-5737?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST