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.)
History

Mon, 02 Dec 2024 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Gnu
Gnu emacs
CPEs cpe:2.3:a:gnu:emacs:-:*:*:*:*:*:*:*
Vendors & Products Gnu
Gnu emacs
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Fri, 29 Nov 2024 02:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

threat_severity

Important

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

threat_severity

Moderate


Thu, 28 Nov 2024 01:45:00 +0000

Type Values Removed Values Added
Title emacs: arbitrary code execution via Lisp macro expansion
Weaknesses CWE-94
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

threat_severity

Important


Wed, 27 Nov 2024 15:45:00 +0000

Type Values Removed Values Added
References

Wed, 27 Nov 2024 15:00:00 +0000

Type Values Removed Values Added
Description 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.)
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2024-11-27T00:00:00

Updated: 2024-12-02T16:57:53.463Z

Reserved: 2024-11-25T00:00:00

Link: CVE-2024-53920

cve-icon Vulnrichment

Updated: 2024-12-02T16:57:47.483Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-11-27T15:15:26.837

Modified: 2024-12-02T17:15:13.913

Link: CVE-2024-53920

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-11-27T00:00:00Z

Links: CVE-2024-53920 - Bugzilla