Advisory 2007-05-01.01

ZoneAlarm Insufficient validation of 'vsdatant' driver input buffer Vulnerability

Basic information:

Description:

ZoneAlarm insufficiently protects its driver \Device\vsdatant against a manipulation by malicious applications and it fails to validate its input buffer. It is possible to open the driver's device and send arbitrary data to it, which are implicitly believed to be valid. It is possible to assemble the data in the input buffer such that the driver performs an invalid memory operation and crashes the whole operating system. Further impacts of this bug (like arbitrary code execution in the kernel mode) were not examined.

Vulnerable software:

• ZoneAlarm Pro 6.5.737.000
• ZoneAlarm Pro 6.1.744.001
• probably all versions of ZoneAlarm products branches 6.x
• possibly older versions of ZoneAlarm products

Not vulnerable software:

• ZoneAlarm Pro 7.0.302.000 and higher
• probably all versions of ZoneAlarm products branches 7.x and higher

Events:

• 2007-05-02: Candidate for inclusion in the CVE list
• 2007-05-01: Vulnerability confirmed by popular information sources
• 2007-05-01: Advisory released
• 2007-01-15: The product vendor released ZoneAlarm products version 7.0.302.000, which fixed the bug
• 2006-09-12: Vendor notification

References:

• Computer Security Vulnerabilities
• SecurityFocus Vulnerabilities
• National Vulnerability Database
• Common Vulnerabilities and Exposures
• FrSIRT Security Advisories
• Secunia Advisories
• Internet Security Systems - X-Force Database
• ZoneAlarm

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