CVE-2018-5736

Name: CVE-2018-5736
Creator: NVD / NIST
Published: 2019-01-16T20:29:00.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 17.88%

Last modified Jun 17, 2026

CVE-2018-5736 is a vulnerability of currently unknown severity. An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. EPSS estimates a 17.88% chance of exploitation in the next 30 days.

Description

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Metrics

EPSS Probability

17.88%

96.8th 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/104386Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040941Third Party Advisory, VDB Entry
https://kb.isc.org/docs/aa-01602Vendor Advisory
https://security.netapp.com/advisory/ntap-20180926-0004/Third Party Advisory
http://www.securityfocus.com/bid/104386Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040941Third Party Advisory, VDB Entry
https://kb.isc.org/docs/aa-01602Vendor 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-2018-5736?

How severe is CVE-2018-5736?

Severity scoring for CVE-2018-5736 is pending analysis. The EPSS model estimates a 17.88% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5736?

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-2018-5736?

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

Scan your code now

Source: NVD / NIST