Buffer underflow in redlight.sys in BufferZone 2.1 and 2.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code by sending a small buffer size value to the FsSetVolumeInformation IOCTL handler code with a FsSetDirectoryInformation subcode containing a large buffer.

Buffer underflow in redlight.sys in BufferZone 2.1 and 2.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code by sending a small buffer size value to the FsSetVolumeInformation IOCTL handler code with a FsSetDirectoryInformation subcode containing a large buffer.