CVE-2022-33905
First published: Mon Nov 14 2022(Updated: )
DMA transactions which are targeted at input buffers used for the AhciBusDxe software SMI handler could cause SMRAM corruption (a TOCTOU attack). DMA transactions which are targeted at input buffers used for the software SMI handler used by the AhciBusDxe 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, kernel 5.3: 05.36.23, kernel 5.4: 05.44.23, kernel 5.5: 05.52.23 https://www.insyde.com/security-pledge/SA-2022047
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Insyde Kernel | >=5.2<5.2.05.27.23 | |
| Insyde Kernel | >=5.3<5.3.05.36.23 | |
| Insyde Kernel | >=5.4<5.4.05.44.23 | |
| Insyde Kernel | >=5.5<5.5.05.52.23 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-33905?
The severity of CVE-2022-33905 is high.
How does CVE-2022-33905 impact the AhciBusDxe software SMI handler?
CVE-2022-33905 can cause SMRAM corruption through DMA transactions targeted at input buffers used by the AhciBusDxe software SMI handler.
Which versions of Insyde Kernel are affected by CVE-2022-33905?
Versions 5.2 to 5.5 of Insyde Kernel are affected by CVE-2022-33905.
Where can I find more information about CVE-2022-33905?
You can find more information about CVE-2022-33905 on the Insyde Security Pledge page and SA-2022047 advisory.
What is the CWE ID of CVE-2022-33905?
The CWE ID of CVE-2022-33905 is 367.
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