CVE-2019-18236: we-con plc_editor Stack-based Buffer Overflow

Vulnerability summary

CVE-2019-18236 is a high (CVSS 7.8) Stack-based Buffer Overflow vulnerability in we-con plc_editor. EPSS estimates a 2.79% chance of exploitation in the next 30 days, higher than 86.3% of scored vulnerabilities.

Timeline

1. 23-12-2019
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

Multiple buffer overflow vulnerabilities exist when the PLC Editor Version 1.3.5_20190129 processes project files. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.