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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.50% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-1284
- Affected
- nhi/health insurance web service component
- Source
- twcert@cert.org.tw
References
- https://www.twcert.org.tw/tw/cp-132-6227-eaf49-1.htmlThird Party Advisory
- https://www.twcert.org.tw/tw/cp-132-6227-eaf49-1.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.