CVE-2022-33908
First published: Mon Nov 14 2022(Updated: )
DMA transactions which are targeted at input buffers used for the SdHostDriver 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 SdHostDriver 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, kernel 5.5: 05.52.25 https://www.insyde.com/security-pledge/SA-2022050
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 | |
| Insyde Kernel | >=5.5<5.5.05.52.25 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-33908?
CVE-2022-33908 is a vulnerability that could cause SMRAM corruption through a TOCTOU attack in the SdHostDriver software SMI handler.
What software is affected by CVE-2022-33908?
The Insyde Kernel versions 5.2 to 5.5 are affected by CVE-2022-33908.
What is the severity of CVE-2022-33908?
CVE-2022-33908 is classified as a high severity vulnerability with a severity score of 7.
How can CVE-2022-33908 be fixed?
To fix CVE-2022-33908, users should apply the necessary patches or updates provided by Insyde or follow the recommendations mentioned in their security advisory.
Where can I find more information about CVE-2022-33908?
More information about CVE-2022-33908 can be found on the Insyde security pledge page or in their SA-2022050 security advisory.
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