CVE-2018-5736

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 44.16% Top 5%
Vendor Advisory isc.org
Affected: n/a n/a
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2018-5736?
CVE-2018-5736 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5736?
To fix CVE-2018-5736, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-5736 being actively exploited in the wild?
It is possible that CVE-2018-5736 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~44% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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