ZDI-22-043: 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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WECON LeviStudioU |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-043?
ZDI-22-043 is considered a high severity vulnerability that allows remote code execution.
How do I fix ZDI-22-043?
To mitigate ZDI-22-043, update WECON LeviStudioU to the latest version provided by the vendor.
What type of exploitation is possible with ZDI-22-043?
ZDI-22-043 can be exploited by remote attackers to execute arbitrary code on the affected installations.
Is user interaction required for ZDI-22-043 exploitation?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file to exploit ZDI-22-043.
Which software is affected by ZDI-22-043?
The vulnerability ZDI-22-043 affects WECON LeviStudioU installations.
- agent/references
- agent/type
- 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/description
- agent/event
- agent/source
- vendor/wecon
- canonical/wecon levistudiou