XBoard 4.2.6 and older contains a script which writes to a file in /tmp with a predictable filename. Malicious users could use this vulnerability to force XBoard users to overwrite any file writableby them.
A heap overflow bug exists in rsync versions prior to 2.5.7. Onmachines where the rsync server has been enabled, a remote attackercould use this flaw to execute arbitrary code as an unprivileged user.
The kernel shipped with Fedora Core 1 was vulnerable to a bug in theerror return on a concurrent fork() with threaded exit() which could beexploited by a user level program to crash the kernel.