A race condition between the select() and accept() calls in NetBSD TCP servers allows remote attackers to cause a denial of service.

Buffer overflow in bootpd on OpenBSD, FreeBSD, and Linux systems via a malformed header type.

IP fragmentation denial of service in FreeBSD allows a remote attacker to cause a crash.

The chpass command in OpenBSD allows a local user to gain root access through file descriptor leakage.

Buffer overflow in BNU UUCP daemon (uucpd) through long hostnames.

FreeBSD mmap function allows users to modify append-only or immutable files.

mmap function in BSD allows local attackers in the kmem group to modify memory through devices.

The system configuration control (sysctl) facility in BSD based operating systems OpenBSD 2.2 and earlier, and FreeBSD 2.2.5 and earlier, does not properly restrict source routed packets even when the (1) dosourceroute or (2) forwarding variables are set, which allows remote attackers to spoof TCP connections.

File creation and deletion, and remote execution, in the BSD line printer daemon (lpd).

The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID.