ZDI-CAN-14420: WECON LeviStudioU UMP File Parsing XY Tag WordAddr7 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 XY tags within UMP files. When parsing the WordAddr7 attribute, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

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• agent/references
• agent/softwarecombine
• collector/zdi-advisory
• source/ZDI
• alias/ZDI-22-043
• alias/ZDI-CAN-14420
• alias/CVE-2021-43983
• agent/software-canonical-lookup
• agent/title
• agent/severity
• agent/tags
• agent/type
• agent/description
• agent/event
• vendor/wecon
• canonical/wecon levistudiou