Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Title LTSP Display Manager vulnerability
Name USN-1398-1 First vendor Publication 2012-03-12
Vendor Ubuntu Last vendor Modification 2012-03-12
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:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


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

- Ubuntu 11.10 - Ubuntu 11.04


LTSP Display Manager could be made to run programs as an administrator.

Software Description: - ldm: LTSP display manager


Tenho Tuhkala discovered that the LTSP Display Manager (ldm) incorrectly filtered keybindings. An attacker could use the default keybindings to execute arbitrary commands as root at the login screen.

Update instructions:

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

Ubuntu 11.10:
ldm 2:2.2.4-0ubuntu1.1

Ubuntu 11.04:
ldm 2:2.2.1-0ubuntu1.1

After a standard system update you need to restart the LTSP Display Manager to make all the necessary changes.


Package Information:

Original Source

Url : http://www.ubuntu.com/usn/USN-1398-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-78 Improper Sanitization of Special Elements used in an OS Command ('OS Command Injection') (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:15104
Oval ID: oval:org.mitre.oval:def:15104
Title: USN-1398-1 -- LTSP Display Manager vulnerability
Description: ldm: LTSP display manager LTSP Display Manager could be made to run programs as an administrator.
Family: unix Class: patch
Reference(s): USN-1398-1
Version: 7
Platform(s): Ubuntu 11.04
Ubuntu 11.10
Product(s): LTSP
Definition Synopsis:

CPE : Common Platform Enumeration

Application 3
Os 2

OpenVAS Exploits

Date Description
2012-03-16 Name : Ubuntu Update for ldm USN-1398-1
File : nvt/gb_ubuntu_USN_1398_1.nasl

Nessus® Vulnerability Scanner

Date Description
2012-03-13 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-1398-1.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-05-22 21:26:58
  • Multiple Updates
2014-05-21 21:27:21
  • Multiple Updates
2014-02-17 11:59:51
  • Multiple Updates