CVE-2024-1975

EUVD-2024-17692

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	Primary	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

Base Score

CVSS 3.x

EPSS Score

Percentile: 34%

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
isc	bind	9.0 ≤ 𝑥 ≤ 9.11.37	ADP
isc	bind	9.16.0 ≤ 𝑥 ≤ 9.16.50	ADP
isc	bind	9.16.8 ≤ 𝑥 ≤ 9.16.49-s1	ADP
isc	bind	9.18.0 ≤ 𝑥 ≤ 9.18.27	ADP
isc	bind	9.18.11 ≤ 𝑥 ≤ 9.18.27-s1	ADP
isc	bind	9.19.0 ≤ 𝑥 ≤ 9.19.24	ADP
isc	bind	9.9.3 ≤ 𝑥 ≤ 9.11.37-s1	ADP

Debian Releases

Debian Product

Codename

bind9

bookworm	1:9.18.33-1~deb12u2 fixed
bookworm (security)	1:9.18.41-1~deb12u1 fixed
bullseye	1:9.16.50-1~deb11u2 fixed
bullseye (security)	1:9.16.50-1~deb11u4 fixed
forky	1:9.20.15-2 fixed
sid	1:9.20.15-2 fixed
trixie	1:9.20.15-1~deb13u1 fixed
trixie (security)	1:9.20.15-1~deb13u1 fixed

Ubuntu Releases

Ubuntu Product

Codename

bind9

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

isc-dhcp

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

bind9-libs

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

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/