What is CVE-2018-8885?

CVE-2018-8885 is a high-severity vulnerability in Canonical Screen-Resolution-Extra, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2018-03-28.

How severe is CVE-2018-8885?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Canonical Screen-Resolution-Extra

CVE-2018-8885

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.

Vulnerability class: Race Condition

EPSS: 0.002 (12.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Canonical Screen-resolution-extra — versions 0.17.2
Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
N/a — versions n/a

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2018-8885?: CVE-2018-8885 is a high-severity vulnerability in Canonical Screen-Resolution-Extra, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2018-03-28.
How severe is CVE-2018-8885?: High severity. CVSS v3 base score is 7.0 out of 10.