CVE-2014-0193: Medium severity Netty Netty vulnerability
WebSocket08FrameDecoder in Netty 3.6.x before 3.6.9, 3.7.x before 3.7.1, 3.8.x before 3.8.2, 3.9.x before 3.9.1, and 4.0.x before 4.0.19 allows remote attackers to cause a denial of service (memory consumption) via a TextWebSocketFrame followed by a long stream of ContinuationWebSocketFrames.
Other sources
It was found that due to a flaw in the WebSocket08FrameDecoder implementation a remote attacker can triggern a server side Out Of Memory Exception by issuing a series of TextWebSocketFrame and ContinuationWebSocketFrames. This may, depending on the server configuration, lead to a denial of service.
— Red Hat
Netty is vulnerable to a denial of service, caused by an error in the WebSocket08FrameDecoder implementation. A remote attacker could exploit this vulnerability to exhaust all available memory resources.
— IBM
WebSocket08FrameDecoder in Netty 3.6.x before 3.6.9, 3.7.x before 3.7.1, 3.8.x before 3.8.2, 3.9.x before 3.9.1, and 4.0.x before 4.0.19 allows remote attackers to cause a denial of service (memory consumption) via a TextWebSocketFrame followed by a long stream of ContinuationWebSocketFrames.
— MITRE
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2014-0193?
CVE-2014-0193 is a vulnerability in Netty that allows remote attackers to cause a denial of service by consuming excessive memory.
How does the vulnerability in Netty 3.6.x to 3.9.1 work?
The vulnerability in Netty 3.6.x to 3.9.1 occurs when a TextWebSocketFrame is followed by a long stream of ContinuationWebSocketFrames, leading to memory consumption and a denial of service.
What is the severity of CVE-2014-0193?
The severity of CVE-2014-0193 is medium.
How do I fix the vulnerability in Netty 4.0.x?
To fix the vulnerability in Netty 4.0.x, update to version 4.0.19 or later.
How do I fix the vulnerability in Netty 3.6.x to 3.9.1?
To fix the vulnerability in Netty 3.6.x to 3.9.1, update to version 3.9.1 or later.