CVE-2023-50868

ADVISORY - nist

Summary

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.

EPSS Score⁠: 0.58345 (0.981)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-400⁠

Uncontrolled Resource Consumption

ADVISORY - redhat

CWE-400⁠

Uncontrolled Resource Consumption

Impacted images

Advisories

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