A stack-based buffer overflow was found in systemd-ask-password, a utility used to query a system password or passphrase from the user, using a question message specified on the command line. A local user could this flaw to crash the binary or even execute arbitrary code with the permissions of the user running the program.
The systemd packages shipped with Mageia 3 and 4 have been updated to address this vulnerability.
Additionally, the Mageia 4 packages include various other general stability and performance fixed deemed appropriate for the stable updates.