What is Ping of Death?

Understanding Ping of Death

Exceeds maximum packet size and causes the receiving system to fail. Ping of Death is a historical denial-of-service attack that sends oversized or malformed ICMP echo request (ping) packets exceeding the maximum allowable size of 65,535 bytes, causing vulnerable systems to crash, freeze, or reboot when attempting to reassemble the fragments. Though mostly mitigated in modern systems, the concept remains relevant to understanding packet-based attacks. Ping of Death and similar packet-based attacks are addressed in standards like NIST SP 800-53 and various network security frameworks. Organizations protect against such attacks through properly configured firewalls, intrusion prevention systems, patch management, and network monitoring. For example, a network security team might configure perimeter firewalls to block oversized ICMP packets, implement IPS rules to detect fragmentation attacks, ensure all systems are patched against known packet handling vulnerabilities, and use network monitoring tools to detect unusual packet patterns. Related terms: Denial of Service, Buffer overflow, Fragmentation attack, ICMP, Network security, Packet filtering, Teardrop attack, Network vulnerability.