CVE-2022-3736
Published: 25 January 2023
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.
Notes
Author | Note |
---|---|
alexmurray | As of isc-dhcp-4.4.3-1, isc-dhcp vendors bind9 libs |
mdeslaur | This issue was introduced in 9.16.12 |
Priority
Status
Package | Release | Status |
---|---|---|
bind9 Launchpad, Ubuntu, Debian |
trusty |
Not vulnerable
|
lunar |
Released
(1:9.18.11-2ubuntu1)
|
|
bionic |
Not vulnerable
(1:9.11.3+dfsg-1ubuntu1.18)
|
|
focal |
Not vulnerable
(1:9.16.1-0ubuntu2.11)
|
|
jammy |
Released
(1:9.18.1-1ubuntu1.3)
|
|
kinetic |
Released
(1:9.18.4-2ubuntu2.1)
|
|
upstream |
Released
(9.16.37,9.18.11,9.19.9)
|
|
xenial |
Not vulnerable
|
|
isc-dhcp Launchpad, Ubuntu, Debian |
kinetic |
Not vulnerable
(code not present)
|
lunar |
Not vulnerable
(code not present)
|
|
bionic |
Not vulnerable
(code not present)
|
|
focal |
Not vulnerable
(code not present)
|
|
jammy |
Not vulnerable
(code not present)
|
|
trusty |
Not vulnerable
(code not present)
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
(code not present)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |