OpenBSD Errata: August 2nd, 2019 (smtpd)
2 August, 2019 by firstname.lastname@example.org | openbsd
Errata patches for OpenSMTPD have been released for OpenBSD 6.4 and 6.5. smtpd can crash on excessively large input, causing a denial of service. Binary updates for the amd64, i386, and arm64 platforms are available via the syspatch utility. Source code patches can be found on the respective errata page: https://www.openbsd.org/errata64.html https://www.openbsd.org/errata65.html After patching, restart the smtpd service.