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CVE-2023-5680

Published: 13 February 2024

If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

Notes

AuthorNote
alexmurray
As of isc-dhcp-4.4.3-1, isc-dhcp vendors bind9 libs
mdeslaur
only affects the Bind Supported Preview Edition

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
bind9
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable

jammy Not vulnerable

mantic Not vulnerable

trusty Not vulnerable

upstream Needs triage

xenial Not vulnerable

isc-dhcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable
(code not present)
jammy Not vulnerable
(code not present)
mantic Not vulnerable

trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L