ZDI-07-013: Kaspersky AntiVirus Engine ARJ Archive Parsing Heap Overflow http://www.zerodayinitiative.com/advisories/ZDI-07-013.html April 5, 2007 -- CVE ID: CVE-2007-0445 -- Affected Vendor: Kaspersky -- Affected Products: Anti-Virus 6.0 Internet Security 6.0 Anti-Virus for Workstation File Server version 6.0 -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since December 12, 2006 by Digital Vaccine protection filter ID 4930. For further product information on the TippingPoint IPS: http://www.tippingpoint.com -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on systems with affected installations of the Kaspersky Anti-Virus Engine. User interaction is not required to exploit this vulnerability. The specific flaw exists in the engine's handling of the ARJ archive format. The Kaspersky engine copies data from scanned archives into an unchecked heap-based buffer. This results in heap corruption when a malformed ARJ archive is processed by an application that utilizes the engine. This corruption can be exploited to execute arbitrary code. -- Vendor Response: Kaspersky has issued an update to correct this vulnerability. More details can be found at: http://www.kaspersky.com/technews?id=203038693 http://www.kaspersky.com/technews?id=203038694 -- Disclosure Timeline: 2006.11.09 - Vulnerability reported to vendor 2006.12.12 - Digital Vaccine released to TippingPoint customers 2007.04.05 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by an anonymous researcher. -- About the Zero Day Initiative (ZDI): Established by TippingPoint, a division of 3Com, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product.