CVE-2022-3736

HIGH

BIND 9.16.12-9.16.36 9.18.0-9.18.10 9.19.0-9.19.8 9.16.12-S1-9.16.36-S1 - Denial of Service via RRSIG Query

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
https://kb.isc.org/docs/cve-2022-3736

Scores

CVSS v3 7.5
EPSS 0.0253
EPSS Percentile 85.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (7)
isc/bind 9.16.11 s1
isc/bind 9.16.13 s1
isc/bind 9.16.14 s1
isc/bind 9.16.21 s1
isc/bind 9.16.32 s1
isc/bind 9.16.36 s1
isc/bind 9.16.12 - 9.16.37
Published Jan 26, 2023
Tracked Since Feb 18, 2026