Ubuntu 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : firefox regressions (USN-1463-3)

Ubuntu Security Notice (C) 2012-2013 Canonical, Inc. / NASL script (C) 2012-2013 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

USN-1463-1 fixed vulnerabilities in Firefox. The new package caused a
regression in the rendering of Hebrew text and the ability of the
Hotmail inbox to auto-update. This update fixes the problem.

Jesse Ruderman, Igor Bukanov, Bill McCloskey, Christian Holler, Andrew
McCreight, Olli Pettay, Boris Zbarsky, and Brian Bondy discovered
memory safety issues affecting Firefox. If the user were tricked into
opening a specially crafted page, an attacker could possibly exploit
these to cause a denial of service via application crash, or
potentially execute code with the privileges of the user invoking
Firefox. (CVE-2012-1937, CVE-2012-1938)

It was discovered that Mozilla's WebGL implementation
exposed a bug in certain NVIDIA graphics drivers. The impact
of this issue has not been disclosed at this time.
(CVE-2011-3101)

Adam Barth discovered that certain inline event handlers
were not being blocked properly by the Content Security
Policy's (CSP) inline-script blocking feature. Web
applications relying on this feature of CSP to protect
against cross-site scripting (XSS) were not fully protected.
With cross-site scripting vulnerabilities, if a user were
tricked into viewing a specially crafted page, a remote
attacker could exploit this to modify the contents, or steal
confidential data, within the same domain. (CVE-2012-1944)

Paul Stone discovered that a viewed HTML page hosted on a
Windows or Samba share could load Windows shortcut files
(.lnk) in the same share. These shortcut files could then
link to arbitrary locations on the local file system of the
individual loading the HTML page. An attacker could
potentially use this vulnerability to show the contents of
these linked files or directories in an iframe, resulting in
information disclosure. (CVE-2012-1945)

Arthur Gerkis discovered a use-after-free vulnerability
while replacing/inserting a node in a document. If the user
were tricked into opening a specially crafted page, an
attacker could possibly exploit this to cause a denial of
service via application crash, or potentially execute code
with the privileges of the user invoking Firefox.
(CVE-2012-1946)

Kaspar Brand discovered a vulnerability in how the Network
Security Services (NSS) ASN.1 decoder handles zero length
items. If the user were tricked into opening a specially
crafted page, an attacker could possibly exploit this to
cause a denial of service via application crash.
(CVE-2012-0441)

Abhishek Arya discovered two buffer overflow and one
use-after-free vulnerabilities. If the user were tricked
into opening a specially crafted page, an attacker could
possibly exploit these to cause a denial of service via
application crash, or potentially execute code with the
privileges of the user invoking Firefox. (CVE-2012-1940,
CVE-2012-1941, CVE-2012-1947).

Solution :

Update the affected firefox package.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)