CVE-2024-4076: Assertion failure when serving both stale cache data and authoritative zone content

Description

Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure. This issue affects BIND 9 versions 9.16.13 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.11.33-S1 through 9.11.37-S1, 9.16.13-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.27-S1.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)2.1% · higher than 82% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

B9

BIND 9 · ISC

9.16.13 through 9.16.50; 9.18.0 through 9.18.27; 9.19.0 through 9.19.24; 9.11.33-S1 through 9.11.37-S1; 9.16.13-S1 through 9.16.50-S1; 9.18.11-S1 through 9.18.27-S1 · source: vendor

BI

Bind · Isc

9.16.13 through 9.16.50; 9.18.0 through 9.18.27; 9.19.0 through 9.19.24; 9.11.33-s1 through 9.11.37-s1; 9.16.13-s1 through 9.16.50-s1; 9.18.11-s1 through 9.18.27-s1 · source: CISA