Executive Summary

Summary
Title Unity vulnerabilities
Informations
Name USN-2184-1 First vendor Publication 2014-04-29
Vendor Ubuntu Last vendor Modification 2014-04-29
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 14.04 LTS

Summary:

The Unity lock screen could be bypassed.

Software Description: - unity: Interface designed for efficiency of space and interaction.

Details:

Frédéric Bardy discovered that Unity incorrectly filtered keyboard shortcuts when the screen was locked. A local attacker could possibly use this issue to run commands, and unlock the current session.

Giovanni Mellini discovered that Unity could display the Dash in certain conditions when the screen was locked. A local attacker could possibly use this issue to run commands, and unlock the current session.

Update instructions:

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

Ubuntu 14.04 LTS:
unity 7.2.0+14.04.20140423-0ubuntu1.1

After a standard system update you need to restart your session to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2184-1
https://launchpad.net/bugs/1308850, https://launchpad.net/bugs/1313885

Package Information:
https://launchpad.net/ubuntu/+source/unity/7.2.0+14.04.20140423-0ubuntu1.1

Original Source

Url : http://www.ubuntu.com/usn/USN-2184-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Os 1

Nessus® Vulnerability Scanner

Date Description
2014-05-01 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2184-2.nasl - Type : ACT_GATHER_INFO
2014-04-30 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2184-1.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-05-07 21:29:36
  • Multiple Updates
2014-05-06 21:28:17
  • Multiple Updates
2014-05-02 13:24:13
  • Multiple Updates
2014-05-01 13:24:45
  • Multiple Updates
2014-04-29 17:18:25
  • First insertion