Denial-of-Service Attacks on Smart Contracts

Denial of Service (DoS) attacks on Smart Contracts involve malicious attempts to disrupt their functionality, often by overwhelming them with excessive transactions or requests, thereby preventing legitimate users from accessing or utilizing the contract's services.

Types of Denial of Service attacks

Denial-of-Service Attack caused by underflow

Denial-of-Service Attack caused by gas limit

Denial-of-Service Attack caused by nonReentrant modifier

Denial-of-Service Attack caused by external call

Denial-of-Service Attack caused by malicious receiver

Sources

https://medium.com/@bloqarl/uncovering-real-life-examples-of-denial-of-service-attacks-on-smart-contracts-8bc220c2cdd0