Several vulnerabilities have been discovered in the ISC DHCP client, relay and server. CVE-2022-2928 It was discovered that the DHCP server does not correctly perform option reference counting when configured with allow leasequery;. A remote attacker can take advantage of this flaw to cause a denial of service . CVE-2022-2929 It was discovered that the DHCP server is prone to a memory leak flaw when handling contents of option 81 data received in a DHCP packet. A remote attacker can take advantage of this flaw to cause DHCP servers to consume resources, resulting in denial of service.