A vulnerability exists in System Management Interrupt (SWSMI) handler of InsydeH2O UEFI Firmware code located in SWSMI handler that dereferences gRT (EFI_RUNTIME_SERVICES) pointer to call a GetVariab…
High CVSS 7.5
Summary
A vulnerability exists in System Management Interrupt (SWSMI) handler of InsydeH2O UEFI Firmware code located in SWSMI handler that dereferences gRT (EFI_RUNTIME_SERVICES) pointer to call a GetVariable service, which is located outside of SMRAM. This can result in code execution in SMM (escalating privilege from ring 0 to ring -2).
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
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Sources
- NVD DATABASE
Original Links
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220222-0005/ Third Party Advisory
- https://www.insyde.com/products Product
- https://www.insyde.com/security-pledge Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220222-0005/ Third Party Advisory
- https://www.insyde.com/products Product
- https://www.insyde.com/security-pledge Vendor Advisory
- https://www.kb.cert.org/vuls/id/796611
- https://cert-portal.siemens.com/productcert/html/ssa-306654.html
Timeline
- nvd_ingest NVD