GHSA-cf5w-m4v7-4w22

GHSA-cf5w-m4v7-4w22 PUBLISHED CVSS 7 HIGH

Record from GitHub Advisory Database · Published February 15, 2023

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the SdHostDriver 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 by using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the link data to SMRAM before checking it and verifying that all pointers are within the buffer.

Risk scores

CVSS 3.1

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Timeline

Feb 15, 2023 CVE Published
May 1, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-cf5w-m4v7-4w22
vulnetix vdb fixes GHSA-cf5w-m4v7-4w22

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-cf5w-m4v7-4w22/fixes/registry"

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References

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