ISC BIND: Configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries (CVE-2022-3736)

ISC BIND: Configured to answer from stale cache may terminate unexpectedly while processing RRSIG queries (CVE-2022-3736)

Severity

8

CVSS

(AV:N/AC:L/Au:N/C:N/I:N/A:C)

Published

01/26/2023

Created

03/08/2023

Added

03/07/2023

Modified

01/28/2025

Description

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.

Solution(s)

• upgrade-isc-bind-latest

References

• https://attackerkb.com/topics/cve-2022-3736
• CVE - 2022-3736
• https://kb.isc.org/v1/docs/cve-2022-3736