Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 543
Alerts This Week
Warning Icon 1 543

Ubuntu 14.10 USN-2505-2: Firefox Regression Critical Security Fix

ubuntu
Calendar Grey March 9, 2015
Dist Ubuntu Esm H88
Mitigating a Firefox vulnerability associated with USN-2505-2 on Ubuntu platforms, highlighting the urgent security measures required and the steps for updates.
USN-2505-1 introduced a regression in Firefox.

Summary

USN-2505-1 introduced a regression in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-2505-1 fixed vulnerabilities in Firefox. This update removed the

deprecated "-remote" command-line switch that some older software still

depends on. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Matthew Noorenberghe discovered that whitelisted Mozilla domains could

make UITour API calls from background tabs. If one of these domains were

compromised and open in a background tab, an attacker could potentially

exploit this to conduct clickjacking attacks. (CVE-2015-0819)

Jan de Mooij discovered an issue that affects content using the Caja

Compiler. If web content loads specially crafted code, this could be used

to bypass sandboxing security measures provided by Caja. (CVE-2015-0820)

Armin Razmdjou discovered that opening hyperlinks with specific mouse

and key combination...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security issue Ubuntu update instructions Firefox regression

Update Instructions

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

Ubuntu 14.10:
  firefox                         36.0.1+build2-0ubuntu0.14.10.1

Ubuntu 14.04 LTS:
  firefox                         36.0.1+build2-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  firefox                         36.0.1+build2-0ubuntu0.12.04.1

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

References

https://ubuntu.com/security/notices/USN-2505-1

https://bugs.launchpad.net/ubuntu/+source/emacs24/+bug/1425972, https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1429115

Severity
critical
Lowest
Low
Medium
High
Critical

March 09, 2015

Topics%20covered

Topics Covered

security advisory denial of service security issue Ubuntu update instructions Firefox regression

Package Information

https://launchpad.net/ubuntu/+source/firefox/36.0.1+build2-0ubuntu0.14.10.1
https://launchpad.net/ubuntu/+source/firefox/36.0.1+build2-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/36.0.1+build2-0ubuntu0.12.04.1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.