OpenBSD Errata: May 3rd, 2019 (rip6cksum)
2 May, 2019 by firstname.lastname@example.org | openbsd
Errata patches for the kernel have been released for OpenBSD 6.3, 6.4, and 6.5. If a userland program sets the IPv6 checksum offset on a raw socket, an incoming packet could crash the kernel. ospf6d is such a program. 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 https://www.openbsd.org/errata65.html As these affect the kernel, a reboot will be needed after patching. Note that this is the last erratum for OpenBSD 6.3.