MIME buffer overflow in email clients, e.g. Solaris mailtool and Outlook.
https://github.com/CVEPhoenixProject/cvelist-bulk-download
https://euvd.enisa.europa.eu/vulnerability/EUVD-1999-0004
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-008