Go before 1.12.11 and 1.3.x before 1.13.2 can panic upon an attempt to process network traffic containing an invalid DSA public key. There are several attack scenarios, such as traffic from a client to a server that verifies client certificates.
Go through 1.12.5 on Windows mishandles process creation with a nil environment in conjunction with a non-nil token, which allows attackers to obtain sensitive information or gain privileges.