ghsa-8737-h7fg-9xgj
Vulnerability from github
Published
2024-11-27 15:31
Modified
2025-03-01 06:30
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details

In elisp-mode.el in GNU Emacs through 30.0.92, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrary code. (This unsafe expansion also occurs if a user chooses to enable on-the-fly diagnosis that byte compiles untrusted Emacs Lisp source code.)

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53920"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-27T15:15:26Z",
    "severity": "CRITICAL"
  },
  "details": "In elisp-mode.el in GNU Emacs through 30.0.92, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrary code. (This unsafe expansion also occurs if a user chooses to enable on-the-fly diagnosis that byte compiles untrusted Emacs Lisp source code.)",
  "id": "GHSA-8737-h7fg-9xgj",
  "modified": "2025-03-01T06:30:53Z",
  "published": "2024-11-27T15:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53920"
    },
    {
      "type": "WEB",
      "url": "https://eshelyaron.com/posts/2024-11-27-emacs-aritrary-code-execution-and-how-to-avoid-it.html"
    },
    {
      "type": "WEB",
      "url": "https://git.savannah.gnu.org/cgit/emacs.git/tag/?h=emacs-30.0.92"
    },
    {
      "type": "WEB",
      "url": "https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4"
    },
    {
      "type": "WEB",
      "url": "https://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-30.1"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=42256409"
    },
    {
      "type": "WEB",
      "url": "https://yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg%40mail.gmail.com"
    },
    {
      "type": "WEB",
      "url": "https://yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg@mail.gmail.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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