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Delta Electronics has a mitigation plan to handle heap-based buffer overflow and out-of-bounds read vulnerabilities in its CNCSoft ScreenEditor, according to a report with NCCIC.

Successful exploitation of these vulnerabilities, discovered by Natnael Samson (@NattiSamson) working with Trend Micro Zero Day Initiative (ZDI), could cause buffer overflow conditions that may allow information disclosure, remote code execution, or crash the application.

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CNCSoft ScreenEditor Versions 1.00.89 and prior suffer from the remotely exploitable vulnerabilities.

In one issue, multiple heap-based buffer overflow vulnerabilities may be exploited by processing specially crafted project files, allowing an attacker to remotely execute arbitrary code. There is a lack of user input validation before copying data from project files onto the heap.

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CVE-2019-10982 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 7.8.

In addition, multiple out-of-bounds read vulnerabilities may cause information disclosure due to lacking user input validation for processing project files.

CVE-2019-10992 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 3.3.

The product sees use mainly in the critical manufacturing sector. It also sees acton on a global basis.

No known public exploits specifically target these vulnerabilities. However, an attacker with low skill level could leverage the vulnerabilities.

Taiwan-based Delta Electronics recommends the following mitigation plan:
• Update to the latest version of ScreenEditor, Version 1.00.94
• Delta Electronics also recommends users restrict the interaction of the application to trusted files

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