Description
Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Extensible Firmware Interface Development Kit (EDK II) | Extensible Firmware Interface Development Kit (EDK II) | N/A | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | edk2 | 0~20180205.c0d9813c-2ubuntu0.3+esm1 | USN-6920-1 |
| Ubuntu Pro 16.04 LTS | edk2 | 0~20160408.ffea0a2c-2ubuntu0.2+esm1 | USN-6920-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | edk2-ovmf +4 | 20190501stable-2.amzn2.0.1 | ALAS2-2019-1290 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | OVMF +1 | 1:1.3.2-1.el7 | ELSA-2020-5861 |
Advisories 3
- USN-6920-1 edk2 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- ELSA-2020-5861 Important: edk2 security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 29, 2020
- ALAS2-2019-1290 Moderate: edk2 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 19, 2019