HTTP: Overlarge ICO Size Parameter
This signature detects attempts to exploit a known vulnerability against Microsoft Internet Explorer. A successful attack can lead to arbitrary code execution.
Extended Description
A stack-based buffer overflow vulnerability is reported to affect the ANI (animated cursor files) handler on Microsoft Windows operating systems. The vulnerability exists in the ANI file header handling routines contained in the 'user32.dll' library. Ultimately the issue may be leveraged to force the execution of attacker-supplied instructions. It has been reported that this vulnerability affects any application that employs the vulnerable Internet Explorer component, for example: Microsoft Internet Explorer, Word, Excel, PowerPoint, Outlook, Outlook Express and the Windows Shell. Other applications are also affected.
Affected Products
Microsoft windows_2000_server
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Nortel_networks
Microsoft
9.3
5.1