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CVE-2023-50868

Estado: AnalizadaAlta (7.5)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (8)

Debian — Debian LinuxFedoraproject — FedoraISC — BindNetapp — Active IQ Unified ManagerNetapp — Bootstrap OSNetapp — HCI Baseboard Management ControllerPowerdns — RecursorRedhat — Enterprise Linux

CWE

Referencias

JSON original (NVD)

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