Executive Summary

Title PolicyKit vulnerability
Name USN-3934-2 First vendor Publication 2019-09-02
Vendor Ubuntu Last vendor Modification 2019-09-02
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


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

- Ubuntu 12.04 ESM


PolicyKit could allow unintended access.

Software Description: - policykit-1: framework for managing administrative policies and privileges


USN-3934-1 fixed a vulnerability in Policykit. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that PolicyKit incorrectly relied on the fork() system
call in the Linux kernel being atomic. A local attacker could possibly use
this issue to gain access to services that have cached authorizations.

Update instructions:

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

Ubuntu 12.04 ESM:
libpolkit-backend-1-0 0.104-1ubuntu1.5
policykit-1 0.104-1ubuntu1.5

After a standard system update you need to reboot your computer to make all the necessary changes.


Original Source

Url : http://www.ubuntu.com/usn/USN-3934-2

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

Application 1
Os 5
Os 1
Os 2
Os 2
Os 2
Os 1
Os 1
Os 2

Alert History

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Date Informations
2019-09-02 17:19:02
  • First insertion