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FreeBSD : emacs -- arbitary shell command execution vulnerability of ctags (76e2fcce-92d2-11ed-a635-080027f5fec9)

high Nessus Plugin ID 170003

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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 76e2fcce-92d2-11ed-a635-080027f5fec9 advisory.

 - GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the ctags * command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.
 (CVE-2022-45939)

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-2022-45939

http://www.nessus.org/u?fb1d3f36

Plugin Details

Severity: High

ID: 170003

File Name: freebsd_pkg_76e2fcce92d211eda635080027f5fec9.nasl

Version: 1.0

Type: local

Published: 1/13/2023

Updated: 1/13/2023

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-2022-45939

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/12/2023

Vulnerability Publication Date: 11/28/2022

Reference Information

CVE: CVE-2022-45939