CVE-2018-5745

An assertion failure can occur if a trust anchor rolls over to an unsupported key algorithm when using managed-keys

State: Published
Severity: 4.9 Medium
Published: Oct 9, 2019
Updated: Sep 16, 2024
Reserved: Jan 17, 2018

Description

"managed-keys" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit due to an assertion failure if, during key rollover, a trust anchor's keys are replaced with keys which use an unsupported algorithm. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.

Scores

CVSS	Score	Vector	Source
3.0	4.9 Medium	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H	isc

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
BIND 9ISC	BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.Affected

References

https://kb.isc.org/docs/cve-2018-5745
RHSA-2019:3552vendor-advisory

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