Multiple vulnerabilities were identified in AhnLab V3 Antivirus, which could be exploited by remote or local attackers to execute arbitrary commands.
The first flaw is due to an error in the real-time scan driver (v3flt2k.sys) that does not properly validate the source of received "DeviceIoControl()" commands, which could be exploited by local attackers to run "explorer.exe" with SYSTEM privileges or to disable the real-time scan engine.
The second issue is due to a stack overflow error in the ACE archive decompression library, which could be exploited by malware to execute arbitrary code.
The third vulnerability is due to an input validation error the archive decompression library, which could be exploited by malware to conduct directory traversal attacks and write files to arbitrary directories.
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