Undertow WebSocket PONG Buffer Leak Causing Memory Exhaustion
CVE-2021-3690 Published on August 23, 2022
A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2021-3690 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2021-3690
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-3690 are published in these products:
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.