Vulnerability · Published Jan 5, 2022 · Assigned by mitre
CVE-2021-45970
High 8.2
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS NVD)8.2High
Exploit odds (30 days)0.4%top 71.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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).
Affected products (as reported)
References
- https://www.insyde.com/security-pledge x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220216-0004/ x_refsource_CONFIRM
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf x_refsource_CONFIRM
- https://www.kb.cert.org/vuls/id/796611
- https://cert-portal.siemens.com/productcert/html/ssa-306654.html