CyberRota Analysis
AI-GeneratedBIND versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, and 9.21.0 through 9.21.23 are vulnerable to a flaw that can cause the software to exit unexpectedly during the validation of DNSSEC records if both NSEC and NSEC3 records are present but only one has a valid RRSIG. This vulnerability can lead to service disruptions, making it critical for organizations using affected BIND versions to prioritize patching to maintain DNS reliability and security. Network administrators and security teams should assess their systems for this issue and apply the necessary updates promptly.
Original NVD Description
If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.