===================================================================== CERT-Renater Note d'Information No. 2006/VULN564 _____________________________________________________________________ DATE : 19/12/2006 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running BitDefender products. ====================================================================== =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0926 -- [Win][Linux][FreeBSD] BitDefender AV Packed PE File Parsing Engine Heap Overflow 19 December 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: BitDefender Antivirus BitDefender Antivirus Plus BitDefender Internet Security BitDefender Mail Protection for Enterprises BitDefender Online Scanner BitDefender for ISA Server BitDefender for MS Exchange 2000 BitDefender for MS Exchange 2003 BitDefender for MS Exchange 5.5 Publisher: n.runs AG Operating System: FreeBSD Linux variants Windows Impact: Execute Arbitrary Code/Commands Access: Remote/Unauthenticated Original Bulletin: http://www.bitdefender.com/KB323-en--cevakrnl.xmd-vulnerability.html - --------------------------BEGIN INCLUDED TEXT-------------------- n.runs AG http://www.nruns.com/ security at nruns.com n.runs-SA-2006.003 15-Dec-2006 ________________________________________________________________________ Vendor: BitDefender, http://www.bitdefender.com Affected Products: BitDefender Antivirus, BitDefender Antivirus Plus, BitDefender Internet Security, BitDefender Mail Protection for Enterprises, BitDefender Online Scanner, BitDefender for ISA Server, BitDefender for MS Exchange 2000, BitDefender for MS Exchange 2003, BitDefender for MS Exchange 5.5 Platforms: Fedora, FreeBSD, Mandrake, Red Hat, SUSE, Slackware, Windows 2000, Windows 2003, Windows 98, Windows Me, Windows NT, Windows XP Vulnerability: Arbitrary Code Execution (remote) ________________________________________________________________________ Vendor communication: 2006/08/24 initial notification of BitDefender 2006/08/25 BitDefender Response 2006/08/26 PGP keys exchange 2006/08/28 PoC files sent to BitDefender 2006/08/29 BitDefender confirmed the bug and fixed it. 2006/08/30 BitDefender released fixes through automatic update. ________________________________________________________________________ Overview: BitDefenderT provides security solutions to satisfy the protection requirements of today's computing environment, delivering effective threat management to over 41 million home and corporate users in more than 200 countries. BitDefender has garnered many awards, accolades and certifications since its inception in 2001. From the prestigious European IST Prize, to the #1 Best Buy ranking from PC World, and most recently, the PC World "Best 100 Products of 2006," the Company is enjoying worldwide recognition for its superior technology and product offering. Description: A remotely exploitable vulnerability has been found in the file parsing engine. In detail, the following flaw was determined: - - Heap Overflow through Integer Overflow in Packed PE File Parsing This problem can lead to remote arbitrary code execution if an attacker carefully crafts a file that exploits the aforementioned vulnerability. Solution: The vulnerabilities were reported on August 28 and an update has been issued on August 29 to solve this vulnerability. The update has been delivered immediately to all BitDefender users through the regular automatic update mechanism, so no user action is required. Note: We would like to thank BitDefender, who were available even during the weekend to fix the problem, for their quick response. ________________________________________________________________________ Credit: Bugs found by Sergio Alvarez of n.runs AG. ________________________________________________________________________ References: http://www.bitdefender.com/KB323-en--cevakrnl.xmd-vulnerability.html ________________________________________________________________________ The information provided is released by n.runs "as is" without warranty of any kind. n.runs disclaims all warranties, either express or implied, expect for the warranties of merchantability. In no eventshall n.runs be liable for any damages whatsever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if n.runs has been advised of the possibility of such damages. Distribution or Reproduction of the information is provided that the advisory is not modified in any way. Copyright 2006 n.runs. All rights reserved. Terms of use. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================