Heap-based buffer overflow in OPC UA Tunneller - CVE-2020-27297
Published: January 25, 2021
Vulnerability identifier: #VU49951
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-27297
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
OPC UA Tunneller
How to mitigate CVE-2020-27297
Install updates from vendor's website.
OPC UA Tunneller - update to 6.3.0.8233