{
   affected: [
      {
         package: {
            ecosystem: "npm",
            name: "engine.io",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "3.6.1",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
      {
         package: {
            ecosystem: "npm",
            name: "engine.io",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "4.0.0",
                  },
                  {
                     fixed: "6.2.1",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2022-41940",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-248",
      ],
      github_reviewed: true,
      github_reviewed_at: "2022-11-21T23:55:41Z",
      nvd_published_at: "2022-11-22T01:15:00Z",
      severity: "MODERATE",
   },
   details: "### Impact\n\nA specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.\n\n```\nevents.js:292\n      throw er; // Unhandled 'error' event\n      ^\n\nError: read ECONNRESET\n    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)\nEmitted 'error' event on Socket instance at:\n    at emitErrorNT (internal/streams/destroy.js:106:8)\n    at emitErrorCloseNT (internal/streams/destroy.js:74:3)\n    at processTicksAndRejections (internal/process/task_queues.js:80:21) {\n  errno: -104,\n  code: 'ECONNRESET',\n  syscall: 'read'\n}\n```\n\nThis impacts all the users of the [`engine.io`](https://www.npmjs.com/package/engine.io) package, including those who uses depending packages like [`socket.io`](https://www.npmjs.com/package/socket.io).\n\n### Patches\n\nA fix has been released today (2022/11/20):\n\n| Version range     | Fixed version |\n|-------------------|---------------|\n| `engine.io@3.x.y` | `3.6.1`       |\n| `engine.io@6.x.y` | `6.2.1`       |\n\nFor `socket.io` users:\n\n| Version range               | `engine.io` version | Needs minor update?                                                                                    |\n|-----------------------------|---------------------|--------------------------------------------------------------------------------------------------------|\n| `socket.io@4.5.x`           | `~6.2.0`            | `npm audit fix` should be sufficient                                                                   |\n| `socket.io@4.4.x`           | `~6.1.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.3.x`           | `~6.0.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.2.x`           | `~5.2.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.1.x`           | `~5.1.1`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.0.x`           | `~5.0.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@3.1.x`           | `~4.1.0`            | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) |\n| `socket.io@3.0.x`           | `~4.0.0`            | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) |\n| `socket.io@2.5.0`           | `~3.6.0`            | `npm audit fix` should be sufficient                                                                   |\n| `socket.io@2.4.x` and below | `~3.5.0`            | Please upgrade to `socket.io@2.5.0`                                                                    |\n\n### Workarounds\n\nThere is no known workaround except upgrading to a safe version.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [`engine.io`](https://github.com/socketio/engine.io)\n\nThanks to [Jonathan Neve](https://github.com/jonathanneve) for the responsible disclosure.\n",
   id: "GHSA-r7qp-cfhv-p84w",
   modified: "2022-12-08T00:47:24Z",
   published: "2022-11-21T23:55:41Z",
   references: [
      {
         type: "WEB",
         url: "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w",
      },
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2022-41940",
      },
      {
         type: "WEB",
         url: "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6",
      },
      {
         type: "WEB",
         url: "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/socketio/engine.io",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
   summary: "Uncaught exception in engine.io",
}