In MIT Kerberos 5 (aka krb5) before 1.22.3, there is a NULL pointer dereference if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger…

{
                    "defaultStatus": "unaffected",
                    "product": "Kerberos 5",
                    "vendor": "MIT",
                    "versions": [
                        {
                            "lessThan": "1.22.3",
                            "status": "affected",
                            "version": "1.18",
                            "versionType": "custom"
                        }
                    ]
                }