Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-4863-1 nodejs security update
Ubuntu USN Ubuntu USN USN-6418-1 Node.js vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2025-04-30T22:24:30.341Z

Reserved: 2021-01-06T00:00:00

Link: CVE-2021-22883

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-03T18:15:14.893

Modified: 2024-11-21T05:50:49.997

Link: CVE-2021-22883

cve-icon Redhat

Severity : Important

Publid Date: 2021-02-20T00:00:00Z

Links: CVE-2021-22883 - Bugzilla

cve-icon OpenCVE Enrichment

No data.