CVE-2023-50387

Description

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.

Patch Available

Fix available through Seal Security.  
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Fix without upgrading

Score

Severity

Ecosystem

APT

Publish Date

February 14, 2024

Modified Date

December 6, 2025

Score Vector

Affected Versions