wolfSSH server accepts server-to-client DH group exchange messages from an unauthenticated client, causing pre-authentication primality-test CPU exhaustion and key exchange role confusion

{
                    "vendor": "wolfSSL Inc.",
                    "product": "wolfSSH",
                    "repo": "https://github.com/wolfSSL/wolfssh",
                    "modules": [
                        "key exchange"
                    ],
                    "programFiles": [
                        "src/internal.c"
                    ],
                    "programRoutines": [
                        {
                            "name": "IsMessageAllowedServer"
                        },
                        {
                            "name": "DoKexDhGexGroup"
                        },
                        {
                            "name": "ValidateKexDhGexGroup"
                        }
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.2.0",
                            "lessThanOrEqual": "1.5.0",
                            "changes": [
                                {
                                    "at": "1.6.0",
                                    "status": "unaffected"
                                }
                            ],
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }