CVE-2022-32476
Vulnerability from cvelistv5
Published
2023-02-15 00:00
Modified
2024-08-03 07:39
Severity ?
EPSS score ?
Summary
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.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://www.insyde.com/security-pledge | Vendor Advisory | |
| cve@mitre.org | https://www.insyde.com/security-pledge/SA-2023008 | Vendor Advisory |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.