Executive Summary

Summary
Title Light Display Manager vulnerability
Informations
Name USN-2012-1 First vendor Publication 2013-11-06
Vendor Ubuntu Last vendor Modification 2013-11-06
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:N)
Cvss Base Score 3.3 Attack Range Local
Cvss Impact Score 4.9 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 13.10

Summary:

Light Display Manager could be made to expose sensitive information locally.

Software Description: - lightdm: Display Manager

Details:

Christian Prim discovered that Light Display Manager incorrectly applied the AppArmor security profile when the Guest account is used. A local attacker could use this issue to possibly gain access to sensitive information.

Update instructions:

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

Ubuntu 13.10:
lightdm 1.8.4-0ubuntu1

This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to reboot your computer to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2012-1
CVE-2013-4459

Package Information:
https://launchpad.net/ubuntu/+source/lightdm/1.8.4-0ubuntu1

Original Source

Url : http://www.ubuntu.com/usn/USN-2012-1

CWE : Common Weakness Enumeration

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

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:18933
 
Oval ID: oval:org.mitre.oval:def:18933
Title: USN-2012-1 -- lightdm vulnerability
Description: Light Display Manager could be made to expose sensitive information locally.
Family: unix Class: patch
Reference(s): USN-2012-1
CVE-2013-4459
Version: 5
Platform(s): Ubuntu 13.10
Product(s): lightdm
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 20
Os 1

Nessus® Vulnerability Scanner

Date Description
2013-11-07 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2012-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-02-17 12:02:42
  • Multiple Updates
2013-11-26 09:25:21
  • Multiple Updates
2013-11-23 22:14:34
  • Multiple Updates
2013-11-06 17:19:31
  • First insertion