CVE-2020-7662

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.

References

Affected packages

Git / github.com/faye/websocket-extensions-node

Affected ranges

Type

GIT

Repo

https://github.com/faye/websocket-extensions-node

Events

Introduced

Fixed

5ea0b420804ba6c4219e152b52fd3bdd6d144041

Database specific

{
    "source": "CPE_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.1.4"
        }
    ],
    "cpe": "cpe:2.3:a:websocket-extensions_project:websocket-extensions:*:*:*:*:*:node.js:*:*"
}

Affected versions

0.*

0.1.0

0.1.1

0.1.2

0.1.3

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-7662.json"