Netbsd ≫ Netbsd

ICMP messages to broadcast addresses are allowed, allowing for a Smurf attack that can cause a denial of service.

Teardrop IP denial of service.

FTP servers can allow an attacker to connect to arbitrary ports on machines other than the FTP client, aka FTP bounce.

Land IP denial of service.

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 sen...

rpc.mountd on Linux, Ultrix, and possibly other operating systems, allows remote attackers to determine the existence of a file on the server by attempting to mount that file, which generates different error messages depending on whether the file exi...

Listening TCP ports are sequentially allocated, allowing spoofing attacks.

The rwho/rwhod service is running, which exposes machine status and user information.

Buffer overflow of rlogin program using TERM environmental variable.

Buffer overflow in Vixie Cron library up to version 3.0 allows local users to obtain root access via a long environmental variable.