CVE-2022-33909

Description

DMA transactions which are targeted at input buffers used for the HddPassword 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 HddPassword 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 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-2022051

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory insyde.com Vendor Advisory insyde.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.insyde.com/security-pledge vendor advisory
https://www.insyde.com/security-pledge/SA-2022051 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-33909?
CVE-2022-33909 has been scored as a high severity vulnerability.
How to fix CVE-2022-33909?
To fix CVE-2022-33909, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-33909 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-33909 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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