CVE-2022-33982
First published: Mon Nov 14 2022(Updated: )
DMA attacks on the parameter buffer used by the Int15ServiceSmm software SMI handler could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. DMA attacks on the parameter buffer used by the software SMI handler used by the driver Int15ServiceSmm could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. This issue was discovered by Insyde engineering during a security review. This issue is fixed in Kernel 5.2: 05.27.23, Kernel 5.3: 05.36.23, Kernel 5.4: 05.44.23 and Kernel 5.5: 05.52.23 CWE-367
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 vulnerability ID?
The vulnerability ID is CVE-2022-33982.
What is the severity of CVE-2022-33982?
The severity of CVE-2022-33982 is medium with a CVSS score of 6.4.
What software is affected by CVE-2022-33982?
The Insyde Kernel version 5.2 through 5.5 is affected by CVE-2022-33982.
What is the impact of CVE-2022-33982?
DMA attacks on the parameter buffer could lead to a TOCTOU attack on the SMI handler and corruption of SMRAM.
How can I fix CVE-2022-33982?
Update the Insyde Kernel to a version that is not affected by the vulnerability.
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