CVE-2023-5680

Summary

CVE-2023-5680 is a vulnerability affecting various versions of BIND 9, including 9.11.3-S1 to 9.11.37-S1, 9.16.8-S1 to 9.16.45-S1, and 9.18.11-S1 to 9.18.21-S1. When a resolver cache contains a large number of ECS records with the same name, the cleanup process for that name can significantly decrease query performance. This issue arises due to an inefficient database node cleaning process for such names.

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