Vulnerability Details : CVE-2022-32476
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the AhciBusDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it.
Products affected by CVE-2022-32476
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-32476
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-32476
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST |
CWE ids for CVE-2022-32476
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The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-32476
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https://www.insyde.com/security-pledge/SA-2023008
Insyde Security Advisory 2023008 | Insyde SoftwareVendor Advisory
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https://www.insyde.com/security-pledge
Insyde's Security Pledge | Insyde SoftwareVendor Advisory
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