CVE-2024-1975

HIGH

BIND 9.0.0-9.11.37, 9.16.0-9.16.50, 9.18.0-9.18.27, 9.19.0-9.19.24 - CPU Exhaustion via SIG(0)

Title source: llm
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0024
EPSS Percentile 46.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (7)
ISC/BIND 9 9.0.0 - 9.11.37
ISC/BIND 9 9.16.0 - 9.16.50
ISC/BIND 9 9.16.8-S1 - 9.16.49-S1
ISC/BIND 9 9.18.0 - 9.18.27
ISC/BIND 9 9.18.11-S1 - 9.18.27-S1
ISC/BIND 9 9.19.0 - 9.19.24
ISC/BIND 9 9.9.3-S1 - 9.11.37-S1
Published Jul 23, 2024
Tracked Since Feb 18, 2026