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Vulnerability · Published Nov 28, 2022 · Assigned by mitre

CVE-2022-45939

High 7.8

In plain English

A high-severity OS command injection in the emacs package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.7%top 47.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8emacs1:26.1-9.el8ALSA-2023:3042
AlmaLinux:9emacs1:27.2-8.el9ALSA-2023:2366
AlmaLinux:8emacs-common1:26.1-9.el8ALSA-2023:3042
AlmaLinux:9emacs-common1:27.2-8.el9ALSA-2023:2366
AlmaLinux:8emacs-filesystem1:26.1-9.el8ALSA-2023:3042
AlmaLinux:9emacs-filesystem1:27.2-8.el9ALSA-2023:2366
AlmaLinux:8emacs-lucid1:26.1-9.el8ALSA-2023:3042
AlmaLinux:9emacs-lucid1:27.2-8.el9ALSA-2023:2366
AlmaLinux:8emacs-nox1:26.1-9.el8ALSA-2023:3042
AlmaLinux:9emacs-nox1:27.2-8.el9ALSA-2023:2366
AlmaLinux:8emacs-terminal1:26.1-9.el8ALSA-2023:3042
Alpine:v3.20emacs28.2-r3ALPINE-CVE-2022-45939
Alpine:v3.21emacs28.2-r3ALPINE-CVE-2022-45939
Alpine:v3.22emacs28.2-r3ALPINE-CVE-2022-45939
Alpine:v3.23emacs28.2-r3ALPINE-CVE-2022-45939
Alpine:v3.24emacs28.2-r3ALPINE-CVE-2022-45939
Debian:12emacs1:28.2+1-8DEBIAN-CVE-2022-45939
Debian:13emacs1:28.2+1-8DEBIAN-CVE-2022-45939
Debian:14emacs1:28.2+1-8DEBIAN-CVE-2022-45939
Debian:12xemacs2121.4.24-11DEBIAN-CVE-2022-45939
Ubuntu:22.04:LTSemacs1:27.1+1-3ubuntu5.2USN-7027-1
Ubuntu:22.04:LTSemacs1:27.1+1-3ubuntu5.2UBUNTU-CVE-2022-45939
Ubuntu:22.04:LTSxemacs21no fix listedUBUNTU-CVE-2022-45939
Ubuntu:24.04:LTSxemacs21no fix listedUBUNTU-CVE-2022-45939
Ubuntu:25.10xemacs21no fix listedUBUNTU-CVE-2022-45939
Ubuntu:26.04:LTSxemacs21no fix listedUBUNTU-CVE-2022-45939
Ubuntu:26.10xemacs21no fix listedUBUNTU-CVE-2022-45939
Ubuntu:22.04:LTSxemacs21-packagesno fix listedUBUNTU-CVE-2022-45939
Ubuntu:24.04:LTSxemacs21-packagesno fix listedUBUNTU-CVE-2022-45939
Ubuntu:25.10xemacs21-packagesno fix listedUBUNTU-CVE-2022-45939
Ubuntu:26.04:LTSxemacs21-packagesno fix listedUBUNTU-CVE-2022-45939
Ubuntu:26.10xemacs21-packagesno fix listedUBUNTU-CVE-2022-45939

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-78 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References