ghsa-c7hh-3v6c-fj4q
Vulnerability from github
Published
2023-08-04 17:26
Modified
2023-08-04 17:26
Severity ?
3.5 (Low) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Summary
matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms
Details

Impact

It was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target.

Patches

Please upgrade to 1.0.1.

Workarounds

You can set the matrixHandler.eventCacheSize config value to 0 to workaround this bug. However, this may impact performance.

Credits

Discovered and reported by Val Lorentz.

For more information

If you have any questions or comments about this advisory email us at security@matrix.org.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.0.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "matrix-appservice-irc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-38700"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-04T17:26:07Z",
    "nvd_published_at": "2023-08-04T19:15:09Z",
    "severity": "LOW"
  },
  "details": "### Impact\n\nIt was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target.\n\n### Patches\n\nPlease upgrade to 1.0.1.\n\n### Workarounds\n\nYou can set the `matrixHandler.eventCacheSize` config value to `0` to workaround this bug. However, this may impact performance.\n\n### Credits\n\nDiscovered and reported by [Val Lorentz](https://valentin-lorentz.fr/).\n\n### For more information\n\nIf you have any questions or comments about this advisory email us at [security@matrix.org](mailto:security@matrix.org).",
  "id": "GHSA-c7hh-3v6c-fj4q",
  "modified": "2023-08-04T17:26:07Z",
  "published": "2023-08-04T17:26:07Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-c7hh-3v6c-fj4q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38700"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/matrix-appservice-irc/commit/8bbd2b69a16cbcbeffdd9b5c973fd89d61498d75"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/matrix-org/matrix-appservice-irc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/matrix-appservice-irc/releases/tag/1.0.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms"
}


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