OpenBSD Errata: May 29th, 2019 (mds)
28 May, 2019 by firstname.lastname@example.org | openbsd
Errata patches for the kernel have been released for OpenBSD 6.4 and 6.5. Intel CPUs have a cross privilege side-channel attack. (MDS) Binary updates for the amd64 platform 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, run fw_update to get the new CPU microcode, then reboot.