SUSE Security Announcement – An integer underflow problem in the iptables firewall logging rules can allow a remote attacker to crash the machine by using a handcrafted IP packet. This attack is only possible with firewalling enabled.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/34801/SUSE-SA%3A2004%3A037.txt
Source: https://packetstormsecurity.com/files/34801/SUSE-Security-Announcement-2004.37.html