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HIGH · 8.5

CVE-2025-8067

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 throu...

Vulnerability Description

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.

CVSS Score

8.5

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2025-8067?

CVE-2025-8067 is a vulnerability with a CVSS score of 8.5 (HIGH). 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 throu...

How severe is CVE-2025-8067?

CVE-2025-8067 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-8067?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.