Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 542
Alerts This Week
Warning Icon 1 542

Ubuntu 15.10: USN-2917-3 Moderate: Firefox Web Compatibility Issues

ubuntu
Calendar Grey April 19, 2016
Scroller Ubuntu
The release of Ubuntu USN-2917-3 altered Firefox significantly, resulting in regression issues like crashes, extension failures, and instability affecting users.
USN-2917-1 introduced several regressions in Firefox.

Summary

USN-2917-1 introduced several regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-2917-1 fixed vulnerabilities in Firefox. This update caused several

web compatibility regressions.

This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NSS.

If a user were tricked in to opening a specially crafted website, an

attacker could potentially exploit this to cause a denial of service via

application crash, or execute arbitrary code with the privileges of the

user invoking Firefox. (CVE-2016-1950)

Bob Clary, Christoph Diehl, Christian Holler, Andrew McCreight, Daniel

Holbert, Jesse Ruderman, Randell Jesup, Carsten Book, Gian-Carlo Pascutto,

Tyson Smith, Andrea Marchesini, and Jukka Jylänki discovered multiple

memory safety issues in Firefox. If a user were tricked in to opening a

speciall...

Read the Full Advisory

Update Instructions

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

Ubuntu 15.10:
  firefox                         45.0.2+build1-0ubuntu0.15.10.1

Ubuntu 14.04 LTS:
  firefox                         45.0.2+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  firefox                         45.0.2+build1-0ubuntu0.12.04.1

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

References

https://ubuntu.com/security/notices/USN-2917-3

https://ubuntu.com/security/notices/USN-2917-1

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1572169

April 19, 2016

Package Information

Get the latest News and Insights

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