Home / mailings [USN-2743-2] Ubufox update
Posted on 23 September 2015
Ubuntu Security==========================
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Ubuntu Security Notice USN-2743-2
September 22, 2015
ubufox update
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary:
This update provides compatible packages for Firefox 41
Software Description:
- ubufox: Ubuntu Firefox specific configuration defaults and apt support
Details:
USN-2743-1 fixed vulnerabilities in Firefox. This update provides the
corresponding update for Ubufox.
Original advisory details:
Andrew Osmond, Olli Pettay, Andrew Sutherland, Christian Holler, David
Major, Andrew McCreight, Cameron McCormack, Bob Clary and Randell Jesup
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 invokin=
g
Firefox. (CVE-2015-4500, CVE-2015-4501)
=20
Andr=E9 Bargull discovered that when a web page creates a scripted proxy=
for the window with a handler defined a certain way, a reference to the
inner window will be passed, rather than that of the outer window.
(CVE-2015-4502)
=20
Felix Gr=F6bert discovered an out-of-bounds read in the QCMS color
management library in some circumstances. If a user were tricked in to
opening a specially crafted website, an attacker could potentially explo=
it
this to cause a denial of service via application crash, or obtain
sensitive information. (CVE-2015-4504)
=20
Khalil Zhani discovered a buffer overflow when parsing VP9 content in so=
me
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-2015-4506)
=20
Spandan Veggalam discovered a crash while using the debugger API in some=
circumstances. If a user were tricked in to opening a specially crafted
website whilst using the debugger, an attacker could potentially exploit=
this to execute arbitrary code with the privileges of the user invoking
Firefox. (CVE-2015-4507)
=20
Juho Nurminen discovered that the URL bar could display the wrong URL in=
reader mode in some circumstances. If a user were tricked in to opening =
a
specially crafted website, an attacker could potentially exploit this to=
conduct URL spoofing attacks. (CVE-2015-4508)
=20
A use-after-free was discovered when manipulating HTML media content 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-2015-4509)
=20
Looben Yang discovered a use-after-free when using a shared worker with
IndexedDB 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 co=
de
with the privileges of the user invoking Firefox. (CVE-2015-4510)
=20
Francisco Alonso discovered an out-of-bounds read during 2D canvas
rendering in some circumstances. If a user were tricked in to opening a
specially crafted website, an attacker could potentially exploit this to=
obtain sensitive information. (CVE-2015-4512)
=20
Jeff Walden discovered that changes could be made to immutable propertie=
s
in some circumstances. If a user were tricked in to opening a specially
crafted website, an attacker could potentially exploit this to execute
arbitrary script in a privileged scope. (CVE-2015-4516)
=20
Ronald Crane reported multiple vulnerabilities. If a user were tricked i=
n
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-2015-4517, CVE-2015-4521, CVE-2015-4522, CVE-2015-7174,
CVE-2015-7175, CVE-2015-7176, CVE-2015-7177, CVE-2015-7180)
=20
Mario Gomes discovered that dragging and dropping an image after a
redirect exposes the redirected URL to scripts. An attacker could
potentially exploit this to obtain sensitive information. (CVE-2015-4519=
)
=20
Ehsan Akhgari discovered 2 issues with CORS preflight requests. An
attacker could potentially exploit these to bypass CORS restrictions.
(CVE-2015-4520)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.04:
xul-ext-ubufox 3.2-0ubuntu0.15.04.1
Ubuntu 14.04 LTS:
xul-ext-ubufox 3.2-0ubuntu0.14.04.1
Ubuntu 12.04 LTS:
xul-ext-ubufox 3.2-0ubuntu0.12.04.1
After a standard system update you need to restart Firefox to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2743-2
http://www.ubuntu.com/usn/usn-2743-1
https://launchpad.net/bugs/1498681
Package Information:
https://launchpad.net/ubuntu/+source/ubufox/3.2-0ubuntu0.15.04.1
https://launchpad.net/ubuntu/+source/ubufox/3.2-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/ubufox/3.2-0ubuntu0.12.04.1
