What’s Vulnerable › Vulnerabilities

CVE-2018-8885

• Severity: high (CVSS 7.0 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-03-28 · updated 2026-06-17
• Weakness: CWE-362

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.

Affected products

• Canonical Screen-Resolution-Extra: 0.17.2
• Canonical Ubuntu Linux: 14.04, 16.04, 17.10

References

• https://usn.ubuntu.com/3607-1/
• https://usn.ubuntu.com/3607-1/

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