vulnerability
Red Hat: CVE-2021-38578: integer underflow in SmmEntryPoint function leads to potential SMM privilege escalation (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Mar 3, 2022 | May 15, 2023 | Sep 1, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Mar 3, 2022
Added
May 15, 2023
Modified
Sep 1, 2025
Description
Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-edk2-aarch64redhat-upgrade-edk2-debugsourceredhat-upgrade-edk2-ovmfredhat-upgrade-edk2-toolsredhat-upgrade-edk2-tools-debuginforedhat-upgrade-edk2-tools-doc
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