CVE-2021-45918

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.

CVSS v3 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://www.twcert.org.tw/tw/cp-132-6227-eaf49-1.html	Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-6227-eaf49-1.html	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nhi:health_insurance_web_service_component:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:33

Type	Values Removed	Values Added
References	~~() https://www.twcert.org.tw/tw/cp-132-6227-eaf49-1.html - Third Party Advisory~~	() https://www.twcert.org.tw/tw/cp-132-6227-eaf49-1.html - Third Party Advisory

26 Jun 2023, 17:49

Type	Values Removed	Values Added
CWE	~~CWE-787~~	CWE-1284

Information

Published : 2022-06-20 06:15

Updated : 2024-11-21 06:33

NVD link : CVE-2021-45918

Mitre link : CVE-2021-45918

CVE.ORG link : CVE-2021-45918

JSON object : View

Products Affected

nhi

health_insurance_web_service_component

CWE

CWE-122

Heap-based Buffer Overflow

CWE-1284

Improper Validation of Specified Quantity in Input

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