Denial of Service Vulnerability in socket.io-parser by Socket.IO
CVE-2020-36049

7.5HIGH

Key Information:

Vendor

Socket

Status
Socket.io-parser
Vendor
CVE Published:
8 January 2021

What is CVE-2020-36049?

A vulnerability in socket.io-parser prior to version 3.4.1 allows attackers to exploit the system by sending a large packet. This can lead to significant memory consumption and potential denial of service, as the parser uses a concatenation approach that is inefficient with oversized data.

References

https://blog.caller.xyz/socketio-engineio-dos/
x_refsource_MISC
https://github.com/bcaller/kill-engine-io
x_refsource_MISC
https://github.com/socketio/socket.io-parser/commit/dcb94...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.