A vulnerability in the rm utility of uutils coreutils allows a bypass of the --preserve-root protection. The implementation uses a path-string check rather than comparing device and inode numbers to identify the root directory. An attacker or accidental user can bypass this safeguard by using a symbolic link that resolves to the root directory (e.g., /tmp/rootlink -> /), potentially leading to the unintended recursive deletion of the entire root filesystem.
Exploitability
AV:LAC:HPR:NUI:NScope
S:UImpact
C:NI:HA:H6.7/CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:HFile System