WECON LeviStudioU HSC File Parsing CharSize Attribute Stack-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of WECON LeviStudioU. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of HSC files. The issue results from the lack of proper validation of the length of user-supplied data in a CharSize attribute prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of an administrator.