REDHAT-BUG-2171989: Command Injection
First published: Tue Feb 21 2023(Updated: )
An issue was discovered in GNU Emacs through 28.2. htmlfontify.el has a command injection vulnerability. In the hfy-istext-command function, the parameter file and parameter srcdir come from external input, and parameters are not escaped. If a file name or directory name contains shell metacharacters, code may be executed. <a href="https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=1b4dc4691c1f87fc970fbe568b43869a15ad0d4c">https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=1b4dc4691c1f87fc970fbe568b43869a15ad0d4c</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU Emacs | <=28.2 |
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Reference Links
- https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=1b4dc4691c1f87fc970fbe568b43869a15ad0d4c
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2171990
- https://access.redhat.com/errata/RHSA-2023:2626
- https://access.redhat.com/errata/RHSA-2023:3481
- https://access.redhat.com/errata/RHSA-2023:7083
- https://access.redhat.com/errata/RHSA-2024:1103
- https://access.redhat.com/errata/RHSA-2024:1408
- https://bugzilla.redhat.com/show_bug.cgi?id=2171989
Frequently Asked Questions
What is the severity of REDHAT-BUG-2171989?
The severity of REDHAT-BUG-2171989 has been classified as high due to the command injection vulnerability.
How do I fix REDHAT-BUG-2171989?
To fix REDHAT-BUG-2171989, update GNU Emacs to the latest version that addresses this vulnerability.
Which versions of software are affected by REDHAT-BUG-2171989?
GNU Emacs versions up to and including 28.2 are affected by REDHAT-BUG-2171989.
What is the nature of the vulnerability in REDHAT-BUG-2171989?
REDHAT-BUG-2171989 involves a command injection vulnerability due to unsanitized external inputs in the htmlfontify.el file.
Is there a specific function involved in REDHAT-BUG-2171989?
Yes, the vulnerability in REDHAT-BUG-2171989 is associated with the hfy-istext-command function.
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