CVE-2022-40188: Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an…

PriorityP434high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

1.45%

70.2th percentile

Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
cz.nic	knot-resolver	>= 0 < 5.5.3-1	5.5.3-1
cz.nic	knot-resolver	>= 0 < 5.5.3-1	5.5.3-1
cz.nic	knot-resolver	>= 0 < 5.5.3-1	5.5.3-1
debian	debian_linux	—	—
debian	knot-resolver	< knot-resolver 5.5.3-1 (bookworm)	knot-resolver 5.5.3-1 (bookworm)
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
nic	knot_resolver	< 5.5.3	5.5.3

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv7.5HIGH

vendor_debian7.5HIGH

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