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Ubuntu 15.10 USN-2917-2 Moderate: Firefox Crash Issues Resolved

ubuntu
Calendar Grey April 7, 2016
Scroller Ubuntu
Addressing issues in Firefox linked to USN-2917-1; Critical patches for impacted Ubuntu versions provided.
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

regressions that could result in search engine settings being lost, the

list of search providers appearing empty or the location bar breaking

after typing an invalid URL. 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, An...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service firefox regressions application crash ubuntu memory safety

Update Instructions

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

Ubuntu 15.10:
  firefox                         45.0.1+build1-0ubuntu0.15.10.2

Ubuntu 14.04 LTS:
  firefox                         45.0.1+build1-0ubuntu0.14.04.2

Ubuntu 12.04 LTS:
  firefox                         45.0.1+build1-0ubuntu0.12.04.2

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

References

https://ubuntu.com/security/notices/USN-2917-2

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

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1567671

Severity
important
Lowest
Low
Medium
High
Critical

April 07, 2016

Topics%20covered

Topics Covered

security advisory denial of service firefox regressions application crash ubuntu memory safety

Package Information

https://launchpad.net/ubuntu/+source/firefox/45.0.1+build1-0ubuntu0.15.10.2
https://launchpad.net/ubuntu/+source/firefox/45.0.1+build1-0ubuntu0.14.04.2
https://launchpad.net/ubuntu/+source/firefox/45.0.1+build1-0ubuntu0.12.04.2

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