OpenBSD Errata: January 30th, 2020 (smtpd_tls)

"T.J. Townsend" <[email protected]> Tue, 28 Jan 2020 17:25:57 -0500

Newsgroups	gmane.os.openbsd.announce
Message-ID	<20200128222557.GE20511@wired>

Errata patches for OpenSMTPD have been released for OpenBSD 6.5 and 6.6.

smtpd can crash on opportunistic TLS downgrade, 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/errata65.html
  https://www.openbsd.org/errata66.html

After patching, restart the smtpd service.