Out-of-bounds read in Siemens products - CVE-2021-31881
Published: November 10, 2021
Vulnerability identifier: #VU58081
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-31881
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
Nucleus NET
Nucleus Source Code
Capital VSTAR
Nucleus ReadyStart
Nucleus NET
Nucleus Source Code
Capital VSTAR
Nucleus ReadyStart
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition. A remote attacker on the local network can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system or cause a denial of service (DoS) condition.
How to mitigate CVE-2021-31881
Install updates from vendor's website.