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Ubuntu Security Notice USN-3260-2

Ubuntu Security Notice USN-3260-2
Posted May 11, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3260-2 - USN-3260-1 fixed vulnerabilities in Firefox. The update caused the date picker panel and form validation errors to close immediately on opening. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to read uninitialized memory, obtain sensitive information, spoof the addressbar contents or other UI elements, escape the sandbox to read local files, conduct cross-site scripting attacks, cause a denial of service via application crash, or execute arbitrary code. A flaw was discovered in the DRBG number generation in NSS. If an attacker were able to perform a man-in-the-middle attack, this flaw could potentially be exploited to view sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local, spoof, vulnerability, xss
systems | linux, ubuntu
advisories | CVE-2017-5433, CVE-2017-5434, CVE-2017-5435, CVE-2017-5436, CVE-2017-5437, CVE-2017-5438, CVE-2017-5439, CVE-2017-5440, CVE-2017-5441, CVE-2017-5442, CVE-2017-5443, CVE-2017-5444, CVE-2017-5445, CVE-2017-5446, CVE-2017-5447, CVE-2017-5448, CVE-2017-5449, CVE-2017-5451, CVE-2017-5453, CVE-2017-5454, CVE-2017-5455, CVE-2017-5456, CVE-2017-5458, CVE-2017-5459, CVE-2017-5460, CVE-2017-5461, CVE-2017-5462, CVE-2017-5464
SHA-256 | 4516672128a2c863308c540e8b88eefd6516196d22c6093ee8fb3334947b872f

Ubuntu Security Notice USN-3260-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3260-2
May 11, 2017

firefox regression
==========================================================================

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

- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

USN-3260-1 caused a regression in Firefox.

Software Description:
- firefox: Mozilla Open Source web browser

Details:

USN-3260-1 fixed vulnerabilities in Firefox. The update caused the
date picker panel and form validation errors to close immediately on
opening. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to read uninitialized memory, obtain sensitive
information, spoof the addressbar contents or other UI elements, escape
the sandbox to read local files, conduct cross-site scripting (XSS)
attacks, cause a denial of service via application crash, or execute
arbitrary code. (CVE-2017-5429, CVE-2017-5430, CVE-2017-5432,
CVE-2017-5433, CVE-2017-5434, CVE-2017-5435, CVE-2017-5436, CVE-2017-5437,
CVE-2017-5438, CVE-2017-5439, CVE-2017-5440, CVE-2017-5441, CVE-2017-5442,
CVE-2017-5443, CVE-2017-5444, CVE-2017-5445, CVE-2017-5446, CVE-2017-5447,
CVE-2017-5448, CVE-2017-5449, CVE-2017-5451, CVE-2017-5453, CVE-2017-5454,
CVE-2017-5455, CVE-2017-5456, CVE-2017-5458, CVE-2017-5459, CVE-2017-5460,
CVE-2017-5461, CVE-2017-5464, CVE-2017-5465, CVE-2017-5466, CVE-2017-5467,
CVE-2017-5468, CVE-2017-5469)

A flaw was discovered in the DRBG number generation in NSS. If an
attacker were able to perform a man-in-the-middle attack, this flaw
could potentially be exploited to view sensitive information.
(CVE-2017-5462)

Update instructions:

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

Ubuntu 17.04:
firefox 53.0.2+build1-0ubuntu0.17.04.2

Ubuntu 16.10:
firefox 53.0.2+build1-0ubuntu0.16.10.2

Ubuntu 16.04 LTS:
firefox 53.0.2+build1-0ubuntu0.16.04.2

Ubuntu 14.04 LTS:
firefox 53.0.2+build1-0ubuntu0.14.04.2

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

References:
http://www.ubuntu.com/usn/usn-3260-2
http://www.ubuntu.com/usn/usn-3260-1
https://launchpad.net/bugs/1690195

Package Information:
https://launchpad.net/ubuntu/+source/firefox/53.0.2+build1-0ubuntu0.17.04.2
https://launchpad.net/ubuntu/+source/firefox/53.0.2+build1-0ubuntu0.16.10.2
https://launchpad.net/ubuntu/+source/firefox/53.0.2+build1-0ubuntu0.16.04.2
https://launchpad.net/ubuntu/+source/firefox/53.0.2+build1-0ubuntu0.14.04.2


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