medium6.4
CVE-2022-33906
DMA transactions which are targeted at input buffers used for the FwBlockServiceSmm software SMI handler could cause SMRAM corruption through a TOCTOU attack.
Impact
DMA transactions which are targeted at input buffers used for the FwBlockServiceSmm software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the FwBlockServiceSmm driver could cause SMRAM corruption through a TOCTOU attack. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in kernel 5.2: 05.27.23, 5.3: 05.36.23, 5.4: 05.44.23, 5.5: 05.52.23 https://www.insyde.com/security-pledge/SA-2022048
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Insyde | Kernel | from 5.2 before 5.2.05.27.23 from 5.3 before 5.3.05.36.23 from 5.4 before 5.4.05.44.23 from 5.5 before 5.5.05.52.23 |
Weakness classification
References
- NVD record
- CVE.org record
- https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf
- https://www.insyde.com/security-pledge
- https://www.insyde.com/security-pledge/SA-2022048
- https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf
- https://www.insyde.com/security-pledge
- https://www.insyde.com/security-pledge/SA-2022048