The vulnerability of the `regionalloc` function in the `util/regional.c` component of the DNS server Unbound allows a attacker to access confidential data, compromise its integrity, and cause service failures.

The vulnerability of the regionalloc function in the util/regional.c component of the DNS server Unbound is related to integer overflow. Exploiting this vulnerability allows a remote attacker to access confidential data, compromise its integrity, and cause service failures...