Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2023-50387

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.267
EPSS Ranking 96.1%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2023-50387


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