CVE-2021-45918 HIGH

CVE-2021-45918: NHI’s health insurance web service component – Heap-based Buffer Overflow

Vendor Nhi
Product health insurance web service component
Weakness CWE-122
Published June 20, 2022
Last update September 17, 2024

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

NHI’s health insurance web service component has insufficient validation for input string length, which can result in heap-based buffer overflow attack. A remote attacker can exploit this vulnerability to flood the memory space reserved for the program, in order to terminate service without authentication, which requires a system restart to recover service.

Key dates

02Disclosure timeline

June 20, 2022 CVE published
September 17, 2024 Record updated