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ubuntucveUbuntu.comUB:CVE-2023-5679
HistoryFeb 13, 2024 - 12:00 a.m.

CVE-2023-5679

2024-02-1300:00:00
ubuntu.com
ubuntu.com
12
dns64
serve-stale
named crash
assertion failure
recursive resolution
bind 9
security vulnerability
isc-dhcp
mdeslaur

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.9%

A bad interaction between DNS64 and serve-stale may cause named to crash
with an assertion failure during recursive resolution, when both of these
features are enabled. This issue affects BIND 9 versions 9.16.12 through
9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.12-S1 through
9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

Notes

Author Note
alexmurray As of isc-dhcp-4.4.3-1, isc-dhcp vendors bind9 libs
mdeslaur possibly introduced in 9.16.12
OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchbind9< 1:9.18.18-0ubuntu0.22.04.2UNKNOWN
ubuntu23.10noarchbind9< 1:9.18.18-0ubuntu2.1UNKNOWN
ubuntu24.04noarchbind9< anyUNKNOWN
ubuntu18.04noarchisc-dhcp< anyUNKNOWN

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.9%