#VU58083 Buffer overflow in Siemens products - CVE-2021-31883
Published: November 10, 2021
Vulnerability identifier: #VU58083
Vulnerability risk: Medium
CVSSv4.0: 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-2021-31883
CWE-ID: CWE-119
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Nucleus NET
Nucleus Source Code
Capital VSTAR
Nucleus ReadyStart
Nucleus NET
Nucleus Source Code
Capital VSTAR
Nucleus ReadyStart
Software vendor:
Siemens
Siemens
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the DHCP client application when processing a DHCP ACK message. A remote attacker on the local network can trigger memory corruption and cause a denial of service condition on the target system or gain access to sensitive information.
Remediation
Install updates from vendor's website.