Multiple vulnerabilities have been identified in various F-Secure Anti-Virus products, which could be exploited by attackers or malware to take complete control of an affected system or cause a denial of service.
The first issue is caused by a buffer overflow error when processing malformed LHA archives, which could be exploited by attackers to execute arbitrary commands by tricking a system protected by a vulnerable application to scan a malicious file.
The second vulnerability is caused by an infinite loop when handling malformed archives or packed executables, which could be exploited by attackers to crash a vulnerable application, creating a denial of service condition.
The third issue is caused due to improper access validation of the address space used by the Real-time Scanning component, which could be exploited by malicious local attackers to obtain elevated privileges via a specially crafted IRP (I/O request packet).
Credits
Vulnerabilities reported by Sergio Alvarez (n.runs AG) and the vendor.
ChangeLog
2007-05-30 : Initial release
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