CVE-2024-1975 Information

Description

If a server hosts a zone containing a \KEY\ Resource Record or a resolver DNSSEC-validates a \KEY\ Resource Record from a DNSSEC-signed domain in cache a client can exhaust resolver CPU resources by sending a stream of SIG(0) signed requests. This issue affects BIND 9 versions 9.0.0 through 9.11.37 9.16.0 through 9.16.50 9.18.0 through 9.18.27 9.19.0 through 9.19.24 9.9.3-S1 through 9.11.37-S1 9.16.8-S1 through 9.16.49-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

Reference

https://kb.isc.org/docs/cve-2024-1975 http://www.openwall.com/lists/oss-security/2024/07/23/1

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5