CVE-2024-1975

23.07.2024, 15:15

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
isc	CNA	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA-ADP	ADP	---				---
CVE	ADP	---				---

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 58%

Debian Releases

Debian Product

Codename

bind9

bullseye	1:9.16.50-1~deb11u2 fixed
bullseye (security)	1:9.16.50-1~deb11u3 fixed
bookworm	1:9.18.33-1~deb12u2 fixed
bookworm (security)	1:9.18.33-1~deb12u2 fixed
trixie	1:9.20.9-1 fixed
sid	1:9.20.9-2 fixed

Ubuntu Releases

Ubuntu Product

Codename

bind9

plucky	Fixed 1:9.18.28-0ubuntu1 released
oracular	Fixed 1:9.18.28-0ubuntu1 released
noble	Fixed 1:9.18.28-0ubuntu0.24.04.1 released
jammy	Fixed 1:9.18.28-0ubuntu0.22.04.1 released
focal	Fixed 1:9.18.28-0ubuntu0.20.04.1 released
bionic	Fixed 1:9.11.3+dfsg-1ubuntu1.19+esm4 released
xenial	Fixed 1:9.10.3.dfsg.P4-8ubuntu1.19+esm9 released
trusty	needed

bind9-libs

plucky	dne
oracular	dne
noble	dne
jammy	needs-triage
focal	needs-triage

isc-dhcp

plucky	needs-triage
oracular	needs-triage
noble	needs-triage
jammy	not-affected
focal	not-affected
bionic	needs-triage
xenial	not-affected
trusty	not-affected

Common Weakness Enumeration

CWE-770 - Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References

http://www.openwall.com/lists/oss-security/2024/07/23/1

http://www.openwall.com/lists/oss-security/2024/07/31/2

https://kb.isc.org/docs/cve-2024-1975

http://www.openwall.com/lists/oss-security/2024/07/23/1

https://kb.isc.org/docs/cve-2024-1975

https://security.netapp.com/advisory/ntap-20240731-0002/