Mozilla Foundation Security Advisory 2008-55
Crash and remote code execution in nsFrameManager
- Announced
- November 12, 2008
- Reporter
- ling and wushi of team509 (via TippingPoint)
- Impact
- Critical
- Products
- Firefox, SeaMonkey, Thunderbird
- Fixed in
-
- Firefox 2.0.0.18
- Firefox 3.0.4
- SeaMonkey 1.1.13
- Thunderbird 2.0.0.18
Description
ling and wushi of team509, via
TippingPoint's Zero Day Initiative program, reported a flaw in part of
Mozilla's DOM constructing code. This vulnerability can be exploited
by modifying certain properties of a file input element before it has
finished initializing. When the blur method of the
modified input element is called, uninitialized memory is accessed by
the browser, resulting in a crash. This crash may be used by an
attacker to run arbitrary code on a victim's computer.
Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail. This is not the default setting and we strongly discourage users from running JavaScript in mail.
Workaround
Disable JavaScript until a version containing these fixes can be installed.