Executive Summary

Summary
Title Firefox vulnerability
Informations
Name USN-2893-1 First vendor Publication 2016-02-11
Vendor Ubuntu Last vendor Modification 2016-02-11
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:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 15.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS

Summary:

A same-origin-policy bypass was discovered in Firefox.

Software Description: - firefox: Mozilla Open Source web browser

Details:

Jason Pang discovered that service workers intercept responses to plugin network requests made through the browser. An attacker could potentially exploit this to bypass same origin restrictions using the Flash plugin. (CVE-2016-1949)

Update instructions:

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

Ubuntu 15.10:
firefox 44.0.2+build1-0ubuntu0.15.10.1

Ubuntu 14.04 LTS:
firefox 44.0.2+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
firefox 44.0.2+build1-0ubuntu0.12.04.1

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

References:
http://www.ubuntu.com/usn/usn-2893-1
CVE-2016-1949

Package Information:
https://launchpad.net/ubuntu/+source/firefox/44.0.2+build1-0ubuntu0.15.10.1
https://launchpad.net/ubuntu/+source/firefox/44.0.2+build1-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/44.0.2+build1-0ubuntu0.12.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-2893-1

CWE : Common Weakness Enumeration

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 427

Nessus® Vulnerability Scanner

Date Description
2016-05-31 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201605-06.nasl - Type : ACT_GATHER_INFO
2016-02-25 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-259.nasl - Type : ACT_GATHER_INFO
2016-02-18 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-223.nasl - Type : ACT_GATHER_INFO
2016-02-16 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_172b22cbd3f611e5ac9e485d605f4717.nasl - Type : ACT_GATHER_INFO
2016-02-16 Name : The remote Mac OS X host contains a web browser that is affected by a securit...
File : macosx_firefox_44_0_2.nasl - Type : ACT_GATHER_INFO
2016-02-16 Name : The remote Windows host contains a web browser that is affected by a security...
File : mozilla_firefox_44_0_2.nasl - Type : ACT_GATHER_INFO
2016-02-12 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2893-1.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2016-02-26 00:28:06
  • Multiple Updates
2016-02-13 13:27:47
  • Multiple Updates
2016-02-13 09:29:07
  • Multiple Updates
2016-02-12 00:27:59
  • Multiple Updates
2016-02-12 00:23:23
  • First insertion