Executive Summary

Summary
Title Screen Resolution Extra vulnerability
Informations
Name USN-3607-1 First vendor Publication 2018-03-26
Vendor Ubuntu Last vendor Modification 2018-03-26
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.4 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Screen Resolution Extra could be tricked into bypassing PolicyKit authorizations.

Software Description: - screen-resolution-extra: Extension for the GNOME screen resolution applet

Details:

It was discovered that Screen Resolution Extra was using PolicyKit in an unsafe manner. A local attacker could potentially exploit this issue to bypass intended PolicyKit authorizations.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.10:
screen-resolution-extra 0.17.1.1

Ubuntu 16.04 LTS:
screen-resolution-extra 0.17.1.1~16.04.1

Ubuntu 14.04 LTS:
screen-resolution-extra 0.17.1.1~14.04.1

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3607-1
CVE-2018-8885

Package Information:
https://launchpad.net/ubuntu/+source/screen-resolution-extra/0.17.1.1
https://launchpad.net/ubuntu/+source/screen-resolution-extra/0.17.1.1~16.04.1
https://launchpad.net/ubuntu/+source/screen-resolution-extra/0.17.1.1~14.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-3607-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3

Alert History

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0
1
2
Date Informations
2018-04-27 17:21:14
  • Multiple Updates
2018-03-29 00:21:35
  • Multiple Updates
2018-03-27 00:18:34
  • First insertion