Executive Summary

Summary
Title Click vulnerability
Informations
Name USN-2771-1 First vendor Publication 2015-10-15
Vendor Ubuntu Last vendor Modification 2015-10-15
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:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 15.04 - Ubuntu 14.04 LTS

Summary:

Click could be made to allow malicious apps unintended access to the system.

Software Description: - click: Click package manager

Details:

It was discovered that click did not properly perform input sanitization during click package installation. If a user were tricked into installing a crafted click package, a remote attacker could exploit this to escalate privileges by tricking click into installing lenient security policy for the installed application.

Update instructions:

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

Ubuntu 15.04:
python3-click 0.4.38.5ubuntu0.2

Ubuntu 14.04 LTS:
python3-click 0.4.21.1ubuntu0.2

In general, a standard system update will make all the necessary changes. A corresponding update will be provided to Ubuntu Phone users soon.

For more information, please see: https://insights.ubuntu.com/2015/10/15/update-on-ubuntu-phone-security-issue/

References:
http://www.ubuntu.com/usn/usn-2771-1
https://launchpad.net/bugs/1506467

Package Information:
https://launchpad.net/ubuntu/+source/click/0.4.38.5ubuntu0.2
https://launchpad.net/ubuntu/+source/click/0.4.21.1ubuntu0.2

Original Source

Url : http://www.ubuntu.com/usn/USN-2771-1

CWE : Common Weakness Enumeration

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2

Nessus® Vulnerability Scanner

Date Description
2015-10-16 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2771-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2017-03-09 21:25:03
  • Multiple Updates
2017-02-13 21:23:43
  • Multiple Updates
2015-10-17 13:23:54
  • Multiple Updates
2015-10-16 00:21:37
  • First insertion