An issue was discovered in the Interpeak IPCOMShell TELNET server on Green Hills INTEGRITY RTOS 5.0.4. There is a heap-based buffer overflow in the function responsible for printing the shell prompt, when a custom modifier is used to display information such as a process ID, IP address, or current working directory. Modifier expansion triggers this overflow, causing memory corruption or a crash (and also leaks memory address information).
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7713
Reference (s):
- https://github.com/bl4ckic3/GHS-Bugs
- https://www.ghs.com/products/rtos/integrity.html