CyberRota Analysis
AI-GeneratedKnot DNS versions prior to 3.4.10 and 3.5.x before 3.5.4 are vulnerable due to a flaw in mod-onlinesign that can lead to incorrect computation of the next NSEC owner name. This vulnerability may result in an overly broad authenticated denial interval, enabling downstream validating resolvers to generate negative responses for legitimate DNS queries, potentially causing a denial of service on the resolver side. Organizations using affected versions of Knot DNS should prioritize patching to mitigate this risk.
Original NVD Description
Knot DNS before 3.4.10 and 3.5.x before 3.5.4 contains a vulnerability in mod-onlinesign where the next NSEC owner name can be computed incorrectly. This can create an overly broad authenticated denial interval, allowing downstream validating resolvers using aggressive negative caching to synthesize negative answers for legitimate names and causing resolver-side denial of service.