Vulnerability CVE-2020-36049
Published: 2021-01-08

Description:
socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.

Type:

CWE-400

 (Uncontrolled Resource Consumption ('Resource Exhaustion'))

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Socket -> Socket.io-parser 

 References:
https://blog.caller.xyz/socketio-engineio-dos/
https://github.com/bcaller/kill-engine-io
https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55
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