7.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H
0.001 Low
EPSS
Percentile
35.4%
A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.
events.js:292
throw er; // Unhandled 'error' event
^
Error: read ECONNRESET
at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on Socket instance at:
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal/process/task_queues.js:80:21) {
errno: -104,
code: 'ECONNRESET',
syscall: 'read'
}
This impacts all the users of the engine.io
package, including those who uses depending packages like socket.io
.
A fix has been released today (2022/11/20):
Version range | Fixed version |
---|---|
[email protected] |
3.6.1 |
[email protected] |
6.2.1 |
For socket.io
users:
Version range | engine.io version |
Needs minor update? |
---|---|---|
[email protected] |
~6.2.0 |
npm audit fix should be sufficient |
[email protected] |
~6.1.0 |
Please upgrade to [email protected] |
[email protected] |
~6.0.0 |
Please upgrade to [email protected] |
[email protected] |
~5.2.0 |
Please upgrade to [email protected] |
[email protected] |
~5.1.1 |
Please upgrade to [email protected] |
[email protected] |
~5.0.0 |
Please upgrade to [email protected] |
[email protected] |
~4.1.0 |
Please upgrade to [email protected] (see here) |
[email protected] |
~4.0.0 |
Please upgrade to [email protected] (see here) |
[email protected] |
~3.6.0 |
npm audit fix should be sufficient |
[email protected] and below |
~3.5.0 |
Please upgrade to [email protected] |
There is no known workaround except upgrading to a safe version.
If you have any questions or comments about this advisory:
engine.io
Thanks to Jonathan Neve for the responsible disclosure.