Root command execution via predictable GDB init file

Privilege escalation in Asterisk before 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, or 23.2.2 allows local users to run commands as root. The root-only ast_coredumper script writes a predictable GDB initialization file into a caller-selected output directory and then sources it, permitting a pre-created file, symlink, or race to replace its commands. Exploitation requires write access to that directory and an administrator to run the script; a world-writable Linux directory such as /tmp satisfies that condition and also exposes attacker-controlled output paths to file overwrite or deletion.