Files or Directories Accessible to External Parties
A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.
CWE-552 - Files or Directories Accessible to External Parties
The product makes files or directories accessible to unauthorized actors, even though they should not be.