vulnerability
Oracle Linux: CVE-2021-38578: ELSA-2023-2165: edk2 security, bug fix, and enhancement update (IMPORTANT)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Mar 3, 2022 | May 18, 2023 | Dec 3, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Mar 3, 2022
Added
May 18, 2023
Modified
Dec 3, 2025
Description
Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
A flaw was found in edk2. A integer underflow in the SmmEntryPoint function leads to a write into the SMM region allowing a local attacker with administration privileges on the system to execute code within the SMM privileged context. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
A flaw was found in edk2. A integer underflow in the SmmEntryPoint function leads to a write into the SMM region allowing a local attacker with administration privileges on the system to execute code within the SMM privileged context. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Solutions
oracle-linux-upgrade-edk2-aarch64oracle-linux-upgrade-edk2-ovmforacle-linux-upgrade-edk2-toolsoracle-linux-upgrade-edk2-tools-doc
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