USN-6665-1: Unbound vulnerabilities

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered
that Unbound incorrectly handled validating DNSSEC messages. A remote
attacker could possibly use this issue to cause Unbound to consume
resources, leading to a denial of service. (CVE-2023-50387)

It was discovered that Unbound incorrectly handled preparing an NSEC3
closest encloser proof. A remote attacker could possibly use this issue to
cause Unbound to consume resources, leading to a denial of service.
(CVE-2023-50868)

attacker cve denial of service dnssec issue messages michael proof resources service unbound usn vulnerabilities