Vulnerability Description
An issue was discovered in IdeBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (the status code saved at the CommBuffer+4 location).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Insyde | Insydeh2O | >= 5.1, < 5.16.25 |
Related Weaknesses (CWE)
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220216-0004/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220216-0004/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.kb.cert.org/vuls/id/796611
FAQ
What is CVE-2021-45970?
CVE-2021-45970 is a vulnerability with a CVSS score of 8.2 (HIGH). An issue was discovered in IdeBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists...
How severe is CVE-2021-45970?
CVE-2021-45970 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-45970?
Check the references section above for vendor advisories and patch information. Affected products include: Insyde Insydeh2O.