Out-of-bounds write in Siemens products - CVE-2020-15795
Published: April 14, 2021 / Updated: April 15, 2021
Vulnerability identifier: #VU52208
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-15795
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the DNS domain name label parsing functionality. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
Affected software
Nucleus RTOS
Nucleus Source Code
VSTAR
Nucleus NET
Nucleus Source Code
VSTAR
Nucleus NET
How to mitigate CVE-2020-15795
Install updates from vendor's website.
Nucleus NET - update to 5.2