CVE-2020-14367

A flaw was found in chrony versions before 3.5.1 when creating the PID file
under the /var/run/chrony folder. The file is created during chronyd
startup while still running as the root user, and when it’s opened for
writing, chronyd does not check for an existing symbolic link with the same
file name. This flaw allows an attacker with privileged access to create a
symlink with the default PID file name pointing to any destination file in
the system, resulting in data loss and a denial of service due to the path
traversal.

Bugs

• <https://bugzilla.redhat.com/show_bug.cgi?id=1870298&gt;