CVE-2025-8067

EIP tracks 1 public exploit for CVE-2025-8067. PoCs published by born0monday.

AI-analyzed exploit summary This repository contains two functional PoC scripts for CVE-2025-8067, an out-of-bounds (OOB) read vulnerability in the Udisks daemon. The scripts demonstrate the vulnerability by either crashing the daemon or stealing file descriptors via malicious loop device setup requests.

A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS system. This is achieved via the loop device handler, which handles requests sent through the D-BUS interface. As two of the parameters of this handle, it receives the file descriptor list and index specifying the file where the loop device should be backed. The function itself validates the index value to ensure it isn't bigger than the maximum value allowed. However, it fails to validate the lower bound, allowing the index parameter to be a negative value. Under these circumstances, an attacker can cause the UDisks daemon to crash or perform a local privilege escalation by gaining access to files owned by privileged users.