OESA-2022-1553

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OESA-2022-1553

Summary: rubygem-websocket-extensions security update

Details: Generic extension manager for WebSocket connections. Security Fix(es): websocket-extensions ruby module prior to 0.1.5 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.(CVE-2020-7663)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1553, https://nvd.nist.gov/vuln/detail/CVE-2020-7663