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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3257-1 emacs security update
Debian DSA Debian DSA DSA-5314-1 emacs security update
EUVD EUVD EUVD-2022-48781 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.
Ubuntu USN Ubuntu USN USN-5781-1 Emacs vulnerability
Ubuntu USN Ubuntu USN USN-7027-1 Emacs vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 28 Apr 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-04-28T18:12:24.092Z

Reserved: 2022-11-28T00:00:00.000Z

Link: CVE-2022-45939

cve-icon Vulnrichment

Updated: 2024-08-03T14:24:03.228Z

cve-icon NVD

Status : Modified

Published: 2022-11-28T06:15:10.563

Modified: 2025-04-28T19:15:46.493

Link: CVE-2022-45939

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-11-27T00:00:00Z

Links: CVE-2022-45939 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses