#VU15438 Divide by zero in WITTENSTEIN high integrity systems products - CVE-2018-16523
Published: October 19, 2018 / Updated: December 11, 2018
Vulnerability identifier: #VU15438
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2018-16523
CWE-ID: CWE-369
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FreeRTOS
OpenRTOS
SafeRTOS
FreeRTOS
OpenRTOS
SafeRTOS
Software vendor:
Amazon Web Services
WITTENSTEIN high integrity systems
Amazon Web Services
WITTENSTEIN high integrity systems
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to the function prvCheckOptions checks the TCP options supplied within an Rx TCP packet. A remote attacker can trigger a divide by zero error in prvCheckOptions within the TCP/IP component and cause the system to crash.
The weakness exists due to the function prvCheckOptions checks the TCP options supplied within an Rx TCP packet. A remote attacker can trigger a divide by zero error in prvCheckOptions within the TCP/IP component and cause the system to crash.
Remediation
Update the affected software to version 1.3.2.