A local user may be able to exploit sudo to elevate privileges to root as long as the sudoers file (usually /etc/sudoers) is present
Sudo versions affected:
"Sudo versions 1.8.2 through 1.8.31p2 and 1.9.0 through 1.9.5p1 are affected."
https://www.sudo.ws/alerts/unescape_overflow.html
New Exploit in "sudo" allows users to gain root privileges
Re: New Exploit in "sudo" allows users to gain root privileges
Fixed by update routine (if auto updates are enabled), chroot envoiurment is not affected, e.g. reply by Alexander here (in german): viewtopic.php?f=2&p=27694#p27694