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.
Published: 2020-06-02
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD 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 Github GHSA GHSA-g78m-2chm-r7qv Regular Expression Denial of Service in websocket-extensions (NPM package)
History

No history.

Subscriptions

Redhat Openshift Service Mesh
Websocket-extensions Project Websocket-extensions
cve-icon MITRE

Status: PUBLISHED

Assigner: snyk

Published:

Updated: 2024-08-04T09:33:20.006Z

Reserved: 2020-01-21T00:00:00.000Z

Link: CVE-2020-7662

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-06-02T19:15:12.403

Modified: 2024-11-21T05:37:33.803

Link: CVE-2020-7662

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-06-02T00:00:00Z

Links: CVE-2020-7662 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses