CVE-2022-33907
DMA transactions which are targeted at input buffers used for the software SMI handler used by the IdeBusDxe driver could cause SMRAM corruption through a TOCTOU attack...
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
Description
DMA transactions which are targeted at input buffers used for the software SMI handler used by the IdeBusDxe driver 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 IdeBusDxe 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: 05.27.25, kernel 5.3: 05.36.25, kernel 5.4: 05.44.25 https://www.insyde.com/security-pledge/SA-2022049
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.16% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-367
- Affected
- insyde/kernel
- Source
- cve@mitre.org
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2022049Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2022049Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.