First published: Tue Feb 21 2023(Updated: )
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. <a href="https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=9a3b08061feea14d6f37685ca1ab8801758bfd1c">https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=9a3b08061feea14d6f37685ca1ab8801758bfd1c</a>
Affected Software | Affected Version | How to fix |
---|---|---|
GNU Emacs | <=28.2 |
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The severity of REDHAT-BUG-2171988 is considered high due to the local command injection vulnerability.
To fix REDHAT-BUG-2171988, update GNU Emacs to version 28.3 or later to mitigate the vulnerability.
GNU Emacs versions up to and including 28.2 are affected by REDHAT-BUG-2171988.
The vulnerability in REDHAT-BUG-2171988 is a local command injection in the ruby-find-library-file function.
A possible workaround for REDHAT-BUG-2171988 includes limiting access to the ruby-mode.el functionalities until the software is updated.