CVE-2018-8885 — HIGH (7.0) — White Hats Nepal

Vulnerability Description

screenresolution-mechanism in screen-resolution-extra 0.17.2 does not properly use the PolicyKit D-Bus API, which allows local users to bypass intended access restrictions by leveraging a race condition via a setuid or pkexec process that is mishandled in a PolicyKitService._check_permission call.

CVSS Score

7.0

HIGH

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Canonical	Screen-Resolution-Extra	0.17.2
Canonical	Ubuntu Linux	14.04

Related Weaknesses (CWE)

CWE-362

References

https://usn.ubuntu.com/3607-1/Vendor Advisory
https://usn.ubuntu.com/3607-1/Vendor Advisory

FAQ

What is CVE-2018-8885?

CVE-2018-8885 is a vulnerability with a CVSS score of 7.0 (HIGH). screenresolution-mechanism in screen-resolution-extra 0.17.2 does not properly use the PolicyKit D-Bus API, which allows local users to bypass intended access restrictions by leveraging a race conditi...

How severe is CVE-2018-8885?

CVE-2018-8885 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-8885?

Check the references section above for vendor advisories and patch information. Affected products include: Canonical Screen-Resolution-Extra, Canonical Ubuntu Linux.