CVE-2024-1975

Summary

CVE-2024-1975 is a vulnerability affecting various versions of BIND 9, including 9.0.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.49-S1, and 9.18.11-S1 through 9.18.27-S1. If a server hosts a zone containing a "KEY" Resource Record or if a resolver DNSSEC-validates a "KEY" Resource Record from a DNSSEC-signed domain in cache, a client can send a stream of SIG(0) signed requests, leading to CPU resource exhaustion on the resolver. This issue can potentially cause denial-of-service attacks.

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