CVE-2022-45939

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.

Bugs

• <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59544&gt;
• <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1025009&gt;