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7.5высокая

CVE-2023-50868

→ есть в БДУ: BDU:2024-01462 (на русском)
Описание (на английском; русское — в БДУ выше)

The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.

Затрагиваемое ПО
Netapp Hci baseboard management controllerNetapp H300sNetapp H410cNetapp H410sNetapp H500sNetapp H700sNetapp Active iq unified managerNetapp Bootstrap osNetapp Hci compute nodePowerdns RecursorRedhat Enterprise linuxDebian Debian linuxFedoraproject FedoraIsc Bind
CVSS
Балл7.5 — высокая
ВекторCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Источники
http://www.openwall.com/lists/oss-security/2024/02/16/2http://www.openwall.com/lists/oss-security/2024/02/16/3https://access.redhat.com/security/cve/CVE-2023-50868https://bugzilla.suse.com/show_bug.cgi?id=1219826https://datatracker.ietf.org/doc/html/rfc5155https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.htmlhttps://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1https://kb.isc.org/docs/cve-2023-50868