Vulnerability title: Null Pointer Dereference In K7 Computing Multiple Products [K7Sentry.sys] CVE: CVE-2014-8608 Vendor: K7 Computing Product: Multiple Products [K7Sentry.sys] Affected version: 12.8.0.104 Fixed version: 12.8.0.119 Reported by: Kyriakos Economou Details: Latest and possibly earlier versions of K7Sentry.sys kernel mode driver, also named as the 'K7AV Sentry Device Driver', allows any local user to crash the system by creating a file that contains the string "crashme$$" in its name. Once the file is created, any attempt to access it will result in a null pointer dereference leading to a system crash through a BSoD. b9d087ce ff156059dab9 call dword ptr [K7Sentry+0xa9960 (b9da5960)] ds:0023:b9da5960={nt!wcsstr (80537ff5)} - search for "crashme$$" in the filename b9d087d4 83c408 add esp,8 b9d087d7 85c0 test eax,eax b9d087d9 7406 je K7Sentry+0xc7e1 (b9d087e1) b9d087db 893500000000 mov dword ptr ds:[0],esi - if found write esi to [0] leading to system crash Further details at: https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-8608/ 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. ############################################################### This email originates from the systems of Portcullis Computer Security Limited, a Private limited company, registered in England in accordance with the Companies Act under number 02763799. The registered office address of Portcullis Computer Security Limited is: Portcullis House, 2 Century Court, Tolpits Lane, Watford, United Kingdom, WD18 9RS. The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Any opinions expressed are those of the individual and do not represent the opinion of the organisation. Access to this email by persons other than the intended recipient is strictly prohibited. If you are not the intended recipient, any disclosure, copying, distribution or other action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this email is subject to the terms and conditions expressed in the applicable Portcullis Computer Security Limited terms of business. ############################################################### ##################################################################################### This e-mail message has been scanned for Viruses and Content and cleared by MailMarshal. #####################################################################################