GHSA-fj2x-xhhp-fv9q

GHSA-fj2x-xhhp-fv9q 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 PnpSmm 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.

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-fj2x-xhhp-fv9q
vulnetix vdb fixes GHSA-fj2x-xhhp-fv9q

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-fj2x-xhhp-fv9q/fixes/registry"

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References

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