Ubuntu Security Notice (C) 2011-2013 Canonical, Inc. / NASL script (C) 2011-2013 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related patches.
Benjamin Smedberg, Bob Clary, Jesse Ruderman, and Josh Aas 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,
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.
Mark Kaplan discovered an integer underflow in the SpiderMonkey
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. This
would result in potentially malicious content being run with
privileges of the user invoking Firefox. (CVE-2011-2372).
Update the affected firefox and / or xulrunner-1.9.2 packages.
Risk factor :
Critical / CVSS Base Score : 10.0