VULHUB ™

An error has been reported in the TCP/IP implementation of multiple BSD derived operating systems, including FreeBSD, NetBSD and possibly OpenBSD. Versions of SGI IRIX are also affected. RFC 1122 specifies that a TCP implementation must silently discard an incoming SYN segment addressed to a multicast or broadcast address. The vulnerable BSD implementation will drop a packet based on the link layer address, but does not check the destination IP address.

An error has been reported in the TCP/IP implementation of multiple BSD derived operating systems, including FreeBSD, NetBSD and possibly OpenBSD. Versions of SGI IRIX are also affected. RFC 1122 specifies that a TCP implementation must silently discard an incoming SYN segment addressed to a multicast or broadcast address. The vulnerable BSD implementation will drop a packet based on the link layer address, but does not check the destination IP address.