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Sicherheit: Mehrere Probleme in Mozilla Firefox
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Mozilla Firefox
ID: USN-2936-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 15.10, Ubuntu 16.04 LTS
Datum: Mi, 27. April 2016, 18:33
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2814
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2812
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2816
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2808
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2811
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2806
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2804
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2817
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2820
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2807

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From: Chris Coulson <chris.coulson@canonical.com>
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To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <a7ad2a48-9b04-8c27-a794-a7fe81ab935b@canonical.com>
Subject: [USN-2936-1] Firefox vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-2936-1
April 27, 2016

firefox vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Firefox could be made to crash or run programs as your login if it
opened a malicious website.

Software Description:
- firefox: Mozilla Open Source web browser

Details:

Christian Holler, Tyson Smith, Phil Ringalda, Gary Kwong, Jesse Ruderman,
Mats Palmgren, Carsten Book, Boris Zbarsky, David Bolter, Randell Jesup,
Andrew McCreight, and Steve Fink 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-2016-2804, CVE-2016-2806,
CVE-2016-2807)

An invalid write was discovered when using the JavaScript .watch() method in
some circumstances. 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-2016-2808)

Looben Yang discovered a use-after-free and buffer overflow in service
workers. 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-2016-2811, CVE-2016-2812)

Sascha Just discovered a buffer overflow in libstagefright in some
circumstances. 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-2016-2814)

Muneaki Nishimura discovered that CSP is not applied correctly to web
content sent with the multipart/x-mixed-replace MIME type. An attacker
could potentially exploit this to conduct cross-site scripting (XSS)
attacks when they would otherwise be prevented. (CVE-2016-2816)

Muneaki Nishimura discovered that the chrome.tabs.update API for web
extensions allows for navigation to javascript: URLs. A malicious
extension could potentially exploit this to conduct cross-site scripting
(XSS) attacks. (CVE-2016-2817)

Mark Goodwin discovered that about:healthreport accepts certain events
from any content present in the remote-report iframe. If another
vulnerability allowed the injection of web content in the remote-report
iframe, an attacker could potentially exploit this to change the user's
sharing preferences. (CVE-2016-2820)

Update instructions:

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

Ubuntu 16.04 LTS:
firefox 46.0+build5-0ubuntu0.16.04.2

Ubuntu 15.10:
firefox 46.0+build5-0ubuntu0.15.10.2

Ubuntu 14.04 LTS:
firefox 46.0+build5-0ubuntu0.14.04.2

Ubuntu 12.04 LTS:
firefox 46.0+build5-0ubuntu0.12.04.2

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

References:
http://www.ubuntu.com/usn/usn-2936-1
CVE-2016-2804, CVE-2016-2806, CVE-2016-2807, CVE-2016-2808,
CVE-2016-2811, CVE-2016-2812, CVE-2016-2814, CVE-2016-2816,
CVE-2016-2820, CVE-2018-2817

Package Information:
https://launchpad.net/ubuntu/+source/firefox/46.0+build5-0ubuntu0.16.04.2
https://launchpad.net/ubuntu/+source/firefox/46.0+build5-0ubuntu0.15.10.2
https://launchpad.net/ubuntu/+source/firefox/46.0+build5-0ubuntu0.14.04.2
https://launchpad.net/ubuntu/+source/firefox/46.0+build5-0ubuntu0.12.04.2



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