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Ubuntu 15.10: USN-2880-2 Critical: Firefox Application Crash Fix

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Calendar Grey February 8, 2016
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A bug introduced in Firefox as noted in USN-2880-2 has affected several versions of Ubuntu, leading to unexpected application failures.
USN-2880-1 introduced a regression in Firefox.

Summary

USN-2880-1 introduced a regression in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-2880-1 fixed vulnerabilities in Firefox. This update introduced a

regression which caused Firefox to crash on startup with some configurations.

This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Bob Clary, Christian Holler, Nils Ohlmeier, Gary Kwong, Jesse Ruderman,

Carsten Book, Randell Jesup, Nicolas Pierron, Eric Rescorla, Tyson Smith,

and Gabor Krizsanits discovered multiple memory safety issues in Firefox.

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

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

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

user invoking Firefox. (CVE-2016-1930, CVE-2016-1931)

Gustavo Grieco discovered an out-of-memory crash when loading GIF images

in some circumstances. If a u...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory update critical Ubuntu firefox application crash usn

Update Instructions

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

Ubuntu 15.10:
  firefox                         44.0.1+build2-0ubuntu0.15.10.1

Ubuntu 14.04 LTS:
  firefox                         44.0.1+build2-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  firefox                         44.0.1+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-2880-2

https://ubuntu.com/security/notices/USN-2880-1

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1538724

Severity
critical
Lowest
Low
Medium
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Critical

February 08, 2016

Topics%20covered

Topics Covered

security advisory update critical Ubuntu firefox application crash usn

Package Information

https://launchpad.net/ubuntu/+source/firefox/44.0.1+build2-0ubuntu0.15.10.1
https://launchpad.net/ubuntu/+source/firefox/44.0.1+build2-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/44.0.1+build2-0ubuntu0.12.04.1

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