CVE-2022-33907
First published: Mon Nov 14 2022(Updated: )
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
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Insyde Kernel | >=5.2<5.2.05.27.25 | |
| Insyde Kernel | >=5.3<5.3.05.36.25 | |
| Insyde Kernel | >=5.4<5.4.05.44.25 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-33907?
CVE-2022-33907 is a vulnerability that allows DMA transactions targeted at input buffers used for the software SMI handler used by the IdeBusDxe driver to cause SMRAM corruption through a TOCTOU attack.
How severe is CVE-2022-33907?
CVE-2022-33907 has a severity score of 6.4, which is classified as medium.
What software is affected by CVE-2022-33907?
The Insyde Kernel versions 5.2 to 5.4 are affected by CVE-2022-33907.
How can I fix CVE-2022-33907?
To fix CVE-2022-33907, it is recommended to apply the patches or updates provided by Insyde.
Where can I find more information about CVE-2022-33907?
You can find more information about CVE-2022-33907 in the references provided: [Reference 1](https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf), [Reference 2](https://www.insyde.com/security-pledge), [Reference 3](https://www.insyde.com/security-pledge/SA-2022049).
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