udisks vulnerabilities

A flaw in the udisks daemon allows unprivileged users to back up LUKS encryption headers without authorization. The privileged D-Bus method that exports encryption metadata does not perform a policy check.

A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption metadata on block devices. This can permanently invalidate encryption keys and render encrypted volumes inaccessible.

A flaw in the Udisks daemon allows unprivileged users to create loop devices via D-BUS without proper lower-bound validation of the file descriptor index. An attacker can pass a negative index value, causing a crash or local privilege escalation.