ghsa-v8wm-g9f2-xjv4
Vulnerability from github
Published
2022-05-13 01:49
Modified
2023-10-06 17:13
Summary
Matrix Synapse Security Filtering Flaw
Details

The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.

Show details on source website


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "matrix-synapse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.31.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-12291"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-21T22:50:51Z",
    "nvd_published_at": "2018-06-13T14:29:00Z",
    "severity": "HIGH"
  },
  "details": "The `on_get_missing_events` function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.",
  "id": "GHSA-v8wm-g9f2-xjv4",
  "modified": "2023-10-06T17:13:10Z",
  "published": "2022-05-13T01:49:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12291"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/synapse/pull/3371"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/synapse/commit/0834b49c6a9b6c597a154d4b2dfcf8fff90699ec"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/matrix-org/synapse"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/synapse/releases/tag/v0.31.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Matrix Synapse Security Filtering Flaw"
}


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