Vulnerability title: Denial of Service in PCNetSoftware RAC Server CVE: CVE-2014-2597 Vendor: PCNetSoftware Product: RAC Server Affected version: 4.0.4, 4.0.5 Fixed version: N/A Reported by: Kyriakos Economou Details: Latest and possibly earlier versions of RAC Server software are vulnerable to local DoS attacks that can cause either to disable the keyboard input or to kill the system through a BSoD, by sending specific IOCTL codes to RACDriver.sys kernel mode driver. The attacker can choose between the two. The BSoD is triggered because the size of the input buffer received by the driver is not correctly validated against the size of a static buffer, inside the driver module itself, from where the driver transfers some data to the allocated buffer. The vulnerable function assumes that the size of the input buffer will always be less or equal to the static one. This leads to memory access violation inside the kernel address space when the input buffer is too big, because the vulnerable function will attempt to read outside the module itself. Further details at: https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2597/ Copyright: Copyright (c) Portcullis Computer Security Limited 2014, All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited. Disclaimer: The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.