Ubuntu 11.04 : mozvoikko, ubufox, webfav update (USN-1222-2)

Ubuntu Security Notice (C) 2011-2014 Canonical, Inc. / NASL script (C) 2011-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

USN-1222-1 fixed vulnerabilities in Firefox. This update provides
updated packages for use with Firefox 7.

Benjamin Smedberg, Bob Clary, Jesse Ruderman, Bob Clary, Andrew
McCreight, Andreas Gal, Gary Kwong, Igor Bukanov, Jason Orendorff,
Jesse Ruderman, and Marcia Knous discovered multiple memory
vulnerabilities in the browser rendering engine. An attacker could use
these to possibly execute arbitrary code with the privileges of the
user invoking Firefox. (CVE-2011-2995, CVE-2011-2997)

Boris Zbarsky discovered that a frame named 'location' could
shadow the window.location object unless a script in a page
grabbed a reference to the true object before the frame was
created. This is in violation of the Same Origin Policy. A
malicious website could possibly use this to access another
website or the local file system. (CVE-2011-2999)

Ian Graham discovered that when multiple Location headers
were present, Firefox would use the second one resulting in
a possible CRLF injection attack. CRLF injection issues can
result in a wide variety of attacks, such as XSS (Cross-Site
Scripting) vulnerabilities, browser cache poisoning, and
cookie theft. (CVE-2011-3000)

Mariusz Mlynski discovered that if the user could be
convinced to hold down the enter key, a malicious website
could potential pop up a download dialog and the default
open action would be selected or lead to the installation of
an arbitrary add-on. This would result in potentially
malicious content being run with privileges of the user
invoking Firefox. (CVE-2011-2372, CVE-2011-3001)

Michael Jordon and Ben Hawkes discovered flaws in WebGL. If
a user were tricked into opening a malicious page, an
attacker could cause the browser to crash. (CVE-2011-3002,
CVE-2011-3003)

It was discovered that Firefox did not properly free memory
when processing ogg files. If a user were tricked into
opening a malicious page, an attacker could cause the
browser to crash. (CVE-2011-3005)

David Rees and Aki Helin discovered a problems in the
JavaScript engine. An attacker could exploit this to crash
the browser or potentially escalate privileges within the
browser. (CVE-2011-3232).

Solution :

Update the affected xul-ext-mozvoikko, xul-ext-ubufox and / or
xul-ext-webfav 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 : 8.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false