High severity · published May 27, 2023
CVE-2023-32695
Insufficient validation when decoding a Socket.IO packet
7.5
CVSS
1.1%
EPSS
No
On KEV
Description
socket.io parser is a socket.io encoder and decoder written in JavaScript complying with version 5 of socket.io-protocol. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. A patch has been released in version 4.2.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SO
socket.io-parser · socketio
>= 4.0.0, < 4.2.3; >= 3.4.0, < 3.4.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-32695
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-32695
Patch
https://github.com/socketio/socket.io-parser/commit/2dc3c92622dad113b8676be06f23b1ed46b02ced
Patch
https://github.com/socketio/socket.io-parser/commit/3b78117bf6ba7e99d7a5cfc1ba54d0477554a7f3
Release Notes
https://github.com/socketio/socket.io-parser/releases/tag/4.2.3
Vendor Advisory
https://github.com/socketio/socket.io-parser/security/advisories/GHSA-cqmj-92xf-r6r9