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FreeBSD : Emacs -- Shell injection vulnerability (7ba6c085-1590-491a-98ce-5452646b196f)

high Nessus Plugin ID 216707

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 7ba6c085-1590-491a-98ce-5452646b196f advisory.

 An Emacs 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.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2024-53920

http://www.nessus.org/u?ae7648aa

Plugin Details

Severity: High

ID: 216707

File Name: freebsd_pkg_7ba6c0851590491a98ce5452646b196f.nasl

Version: 1.2

Type: local

Published: 2/24/2025

Updated: 3/19/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2024-53920

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:emacs-devel-nox, p-cpe:/a:freebsd:freebsd:emacs-wayland, p-cpe:/a:freebsd:freebsd:emacs-nox, p-cpe:/a:freebsd:freebsd:emacs-canna, p-cpe:/a:freebsd:freebsd:emacs, cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:emacs-devel

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 2/24/2025

Vulnerability Publication Date: 11/27/2024

Reference Information

CVE: CVE-2024-53920