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Ubuntu Security Notice USN-3238-1
March 20, 2017

firefox vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 16.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
– Ubuntu 12.04 LTS

Summary:

An integer overflow was discovered in Firefox.

Software Description:
– firefox: Mozilla Open Source web browser

Details:

An integer overflow was discovered in Firefox. If a user were tricked in
to opening a specially crafted website, an attacker could exploit this to
cause a denial of service via application crash or execute arbitrary code.
(CVE-2017-5428)

Update instructions:

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

Ubuntu 16.10:
firefox 52.0.1+build2-0ubuntu0.16.10.1

Ubuntu 16.04 LTS:
firefox 52.0.1+build2-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
firefox 52.0.1+build2-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
firefox 52.0.1+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-3238-1
CVE-2017-5428

Package Information:
https://launchpad.net/ubuntu/+source/firefox/52.0.1+build2-0ubuntu0.16.10.1
https://launchpad.net/ubuntu/+source/firefox/52.0.1+build2-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/firefox/52.0.1+build2-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/52.0.1+build2-0ubuntu0.12.04.1

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