CVE-2018-17156

CVE-2018-17156 affects FreeBSD releases prior to 11.2-STABLE (r340268) and 11.2-RELEASE-p5. The issue stems from incorrect padding accounting on 64-bit platforms when constructing an ICMP reply packet using a non-standard value for net.inet.icmp.quotelen, which can lead to a buffer underwrite. Af...