Arbitrary Command Injection Affecting emacs package, versions <1:27.1+1-3.1+deb11u2


0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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NVD
7.3 high
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SUSE
7.3 high
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Red Hat
7.3 high

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  • Snyk ID SNYK-DEBIAN11-EMACS-3326681
  • published 21 Feb 2023
  • disclosed 20 Feb 2023

How to fix?

Upgrade Debian:11 emacs to version 1:27.1+1-3.1+deb11u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream emacs package and not the emacs package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

An issue was discovered in GNU Emacs through 28.2. In ruby-mode.el, the ruby-find-library-file function has a local command injection vulnerability. The ruby-find-library-file function is an interactive function, and bound to C-c C-f. Inside the function, the external command gem is called through shell-command-to-string, but the feature-name parameters are not escaped. Thus, malicious Ruby source files may cause commands to be executed.