unbound: integer overflow in a size calculation in dnscrypt/dnscrypt.c

A flaw was found in unbound. An integer overflow in dnscloadlocaldata function may lead to a buffer overflow of the allocated buffer if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability...

The vulnerability of the dnsc_load_local_data function in the DNS server Unbound allows a hacker to access confidential data, compromise its integrity, and cause service failures.

The vulnerability of the dnscloadlocaldata function in the Unbound DNS server is related to integer overflow. Exploiting this vulnerability can allow a remote attacker to access confidential data, compromise its integrity, and cause service failures...