Ubuntu 12.04 LTS / 12.10 / 13.04 : ubufox, unity-firefox-extension update (USN-1924-2)

Ubuntu Security Notice (C) 2013-2014 Canonical, Inc. / NASL script (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

USN-1924-1 fixed vulnerabilities in Firefox. This update provides the
corresponding updates for Ubufox and Unity Firefox Extension.

Jeff Gilbert, Henrik Skupin, Ben Turner, Christian Holler, Andrew
McCreight, Gary Kwong, Jan Varga and Jesse Ruderman discovered
multiple memory safety issues in Firefox. If the user were tricked in
to opening a specially crafted page, an attacker could possibly
exploit these to cause a denial of service via application crash, or
potentially execute arbitrary code with the privileges of the user
invoking Firefox. (CVE-2013-1701, CVE-2013-1702)

A use-after-free bug was discovered when the DOM is modified
during a SetBody mutation event. If the user were tricked in
to opening a specially crafted page, an attacker could
potentially exploit this to execute arbitrary code with the
privileges of the user invoking Firefox. (CVE-2013-1704)

A use-after-free bug was discovered when generating a CRMF
request with certain parameters. If the user were tricked in
to opening a specially crafted page, an attacker could
potentially exploit this to execute arbitrary code with the
privileges of the user invoking Firefox. (CVE-2013-1705)

Aki Helin discovered a crash when decoding a WAV file in
some circumstances. An attacker could potentially exploit
this to cause a denial of service. (CVE-2013-1708)

It was discovered that a document's URI could be set to the
URI of a different document. An attacker could potentially
exploit this to conduct cross-site scripting (XSS) attacks.
(CVE-2013-1709)

A flaw was discovered when generating a CRMF request in
certain circumstances. An attacker could potentially exploit
this to conduct cross-site scripting (XSS) attacks, or
execute arbitrary code with the privileges of the user
invoking Firefox. (CVE-2013-1710)

Bobby Holley discovered that XBL scopes could be used to
circumvent XrayWrappers in certain circumstances. An
attacked could potentially exploit this to conduct
cross-site scripting (XSS) attacks or cause undefined
behaviour. (CVE-2013-1711)

Cody Crews discovered that some JavaScript components
performed security checks against the wrong URI, potentially
bypassing same-origin policy restrictions. An attacker could
exploit this to conduct cross-site scripting (XSS) attacks
or install addons from a malicious site. (CVE-2013-1713)

Federico Lanusse discovered that web workers could bypass
cross-origin checks when using XMLHttpRequest. An attacker
could potentially exploit this to conduct cross-site
scripting (XSS) attacks. (CVE-2013-1714)

Georgi Guninski and John Schoenick discovered that Java
applets could access local files under certain
circumstances. An attacker could potentially exploit this to
steal confidential data. (CVE-2013-1717).

Solution :

Update the affected xul-ext-ubufox and / or xul-ext-unity packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.8
(CVSS2#E:POC/RL:OF/RC:C)
Public Exploit Available : true