Executive Summary

Summary
Title Firefox vulnerability
Informations
Name USN-2768-1 First vendor Publication 2015-10-16
Vendor Ubuntu Last vendor Modification 2015-10-16
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 15.04 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS

Summary:

Firefox could be made to expose sensitive information across origins

Software Description: - firefox: Mozilla Open Source web browser

Details:

Abdulrahman Alqabandi and Ben Kelly discovered that the fetch() API did not correctly implement the Cross Origin Resource Sharing (CORS) specification. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information from other origins. (CVE-2015-7184)

Update instructions:

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

Ubuntu 15.04:
firefox 41.0.2+build2-0ubuntu0.15.04.1

Ubuntu 14.04 LTS:
firefox 41.0.2+build2-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
firefox 41.0.2+build2-0ubuntu0.12.04.1

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

References:
http://www.ubuntu.com/usn/usn-2768-1
CVE-2015-7184

Package Information:
https://launchpad.net/ubuntu/+source/firefox/41.0.2+build2-0ubuntu0.15.04.1
https://launchpad.net/ubuntu/+source/firefox/41.0.2+build2-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/41.0.2+build2-0ubuntu0.12.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-2768-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-284 Access Control (Authorization) Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 486

Nessus® Vulnerability Scanner

Date Description
2015-10-26 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-678.nasl - Type : ACT_GATHER_INFO
2015-10-19 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_79c68ef7c8ae4ade91b44b8221b7c72a.nasl - Type : ACT_GATHER_INFO
2015-10-19 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2768-1.nasl - Type : ACT_GATHER_INFO
2015-10-16 Name : The remote Mac OS X host contains a web browser that is affected by a cross-o...
File : macosx_firefox_41_0_2.nasl - Type : ACT_GATHER_INFO
2015-10-16 Name : The remote Windows host contains a web browser that is affected by a cross-or...
File : mozilla_firefox_41_0_2.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2015-10-20 13:25:01
  • Multiple Updates
2015-10-20 00:28:12
  • Multiple Updates
2015-10-18 17:32:38
  • Multiple Updates
2015-10-16 13:22:17
  • First insertion