OpenBSD Errata: March 22nd, 2019 (pficmp)
21 March, 2019 by firstname.lastname@example.org | openbsd
Errata patches for pf have been released for OpenBSD 6.3 and 6.4. A state in pf could pass ICMP packets to a destination IP address that did not match the state. 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/errata63.html https://www.openbsd.org/errata64.html As these affect the kernel, a reboot will be needed after patching.