Heap-based Buffer Overflow in Dnsmasq 2.86's dhcp_reply Function

Heap-based Buffer Overflow in Dnsmasq 2.86's dhcp_reply Function

CVE-2021-45952 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.

Learn more about our Web Application Penetration Testing UK.