BIND 9 Resolver Crash Vulnerability with Stale Cache and Stale Answers

BIND 9 Resolver Crash Vulnerability with Stale Cache and Stale Answers

CVE-2022-3736 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.

Learn more about our Web Application Penetration Testing UK.