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ubuntucveUbuntu.comUB:CVE-2022-3736
HistoryJan 25, 2023 - 12:00 a.m.

CVE-2022-3736

2023-01-2500:00:00
ubuntu.com
ubuntu.com
18
cve-2022-3736
bind 9
resolver
rrsig
stale cache
stale answers
isc-dhcp

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

35.2%

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
OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchbind9< 1:9.18.1-1ubuntu1.3UNKNOWN
ubuntu22.10noarchbind9< 1:9.18.4-2ubuntu2.1UNKNOWN
ubuntu23.04noarchbind9< 1:9.18.11-2ubuntu1UNKNOWN

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

35.2%