Fix ruby-mode.el local command injection vulnerability (bug#60268)

* lisp/progmodes/ruby-mode.el
(ruby-find-library-file): Fix local command injection vulnerability.

diff --git a/lisp/progmodes/ruby-mode.el b/lisp/progmodes/ruby-mode.el
index 1f3e9b6ae7b0f8ed53315af53d119d58d0e03641..a4aa61905e439fe60a03c6e3c72bf23b58683fb4 100644 (file)
--- a/lisp/progmodes/ruby-mode.el
+++ b/lisp/progmodes/ruby-mode.el
@@ -1899,7 +1899,7 @@ or `gem' statement around point."
       (setq feature-name (read-string "Feature name: " init))))
   (let ((out
          (substring
-          (shell-command-to-string (concat "gem which " feature-name))
+          (shell-command-to-string (concat "gem which " (shell-quote-argument feature-name)))
           0 -1)))
     (if (string-match-p "\\`ERROR" out)
         (user-error "%s" out)