Knot Resolver Security Vulnerabilities

CVE-2023-46317

Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from...

CVE-2023-26249

Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a...

CVE-2022-40188

Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address...

CVE-2022-32983

Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by...