Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.
https://www.sudo.ws/security/advisories/
https://security.gentoo.org/glsa/202211-08
https://news.ycombinator.com/item?id=33465707
https://github.com/sudo-project/sudo/commit/bd209b9f16fcd1270c13db27ae3329c677d48050