ZDI-07-013: Kaspersky AntiVirus Engine ARJ Archive Parsing Heap Overflow Vulnerability Apr 05 2007 10:58PM
zdi-disclosures 3com com
ZDI-07-013: Kaspersky AntiVirus Engine ARJ Archive Parsing Heap Overflow
April 5, 2007

-- CVE ID:

-- Affected Vendor:

-- 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:


-- 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:


-- 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:


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.

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