{
  "id": "openEuler-SA-2022-2093",
  "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2022-2093",
  "title": "An update for rubygem-websocket-extensions is now available for openEuler-22.03-LTS",
  "severity": "High",
  "description": "Generic extension manager for WebSocket connections.\r\n\r\nSecurity Fix(es):\r\n\r\nwebsocket-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)",
  "cves": [
    {
      "id": "CVE-2020-7663",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7663",
      "severity": "High"
    }
  ]
}