Description
websocket-extensions npm module prior to 0.1.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2020-0489 | websocket-extensions npm module prior to 0.1.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header. |
Github GHSA |
GHSA-g78m-2chm-r7qv | Regular Expression Denial of Service in websocket-extensions (NPM package) |
References
History
No history.
Status: PUBLISHED
Assigner: snyk
Published:
Updated: 2024-08-04T09:33:20.006Z
Reserved: 2020-01-21T00:00:00.000Z
Link: CVE-2020-7662
No data.
Status : Modified
Published: 2020-06-02T19:15:12.403
Modified: 2024-11-21T05:37:33.803
Link: CVE-2020-7662
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Github GHSA