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Sicherheit: Mehrere Probleme in Mozilla Firefox
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Mozilla Firefox
ID: USN-2458-3
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 14.10
Datum: Di, 27. Januar 2015, 15:37
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8634
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8635
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8636
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8637
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8638
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8639
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8640
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8641
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8642

Originalnachricht

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==========================================================================
Ubuntu Security Notice USN-2458-3
January 27, 2015

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

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

- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

USN-2458-1 introduced a regression in Firefox

Software Description:
- firefox: Mozilla Open Source web browser

Details:

USN-2458-1 fixed vulnerabilities in Firefox. This update introduced a
regression which could make websites that use CSP fail to load under some
circumstances. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Christian Holler, Patrick McManus, Christoph Diehl, Gary Kwong, Jesse
Ruderman, Byron Campen, Terrence Cole, and Nils Ohlmeier 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-2014-8634, CVE-2014-8635)

Bobby Holley discovered that some DOM objects with certain properties
can bypass XrayWrappers in some circumstances. If a user were tricked in
to opening a specially crafted website, an attacker could potentially
exploit this to bypass security restrictions. (CVE-2014-8636)

Michal Zalewski discovered a use of uninitialized memory when rendering
malformed bitmap images on a canvas element. If a user were tricked in to
opening a specially crafted website, an attacker could potentially
exploit this to steal confidential information. (CVE-2014-8637)

Muneaki Nishimura discovered that requests from navigator.sendBeacon()
lack an origin header. If a user were tricked in to opening a specially
crafted website, an attacker could potentially exploit this to conduct
cross-site request forgery (XSRF) attacks. (CVE-2014-8638)

Xiaofeng Zheng discovered that a web proxy returning a 407 response
could inject cookies in to the originally requested domain. If a user
connected to a malicious web proxy, an attacker could potentially exploit
this to conduct session-fixation attacks. (CVE-2014-8639)

Holger Fuhrmannek discovered a crash in Web Audio while manipulating
timelines. If a user were tricked in to opening a specially crafted
website, an attacker could potentially exploit this to cause a denial
of service. (CVE-2014-8640)

Mitchell Harper discovered a use-after-free in WebRTC. 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-2014-8641)

Brian Smith discovered that OCSP responses would fail to verify if signed
by a delegated OCSP responder certificate with the id-pkix-ocsp-nocheck
extension, potentially allowing a user to connect to a site with a revoked
certificate. (CVE-2014-8642)

Update instructions:

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

Ubuntu 14.10:
firefox 35.0.1+build1-0ubuntu0.14.10.1

Ubuntu 14.04 LTS:
firefox 35.0.1+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
firefox 35.0.1+build1-0ubuntu0.12.04.1

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

Package Information:
https://launchpad.net/ubuntu/+source/firefox/35.0.1+build1-0ubuntu0.14.10.1
https://launchpad.net/ubuntu/+source/firefox/35.0.1+build1-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/35.0.1+build1-0ubuntu0.12.04.1



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