Description
Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path. This allows unprivileged users to create files in arbitrary locations with `root` ownership, the invoking user's (real) group ownership and file mode 0644. All data written to the Screen PTY will be logged into this file, allowing to escalate to root privileges
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
screen
Default version status: unaffected
5.0 to ≤ 5.0.0affected