Vulnerability · Published Aug 26, 2022 · Assigned by mitre
CVE-2022-34303
Medium 6.7
In plain English
A medium-severity security flaw in the fwupd package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | fwupd | 1.8.10-2.el9.alma | ALSA-2023:2487 |
| AlmaLinux:9 | fwupd-devel | 1.8.10-2.el9.alma | ALSA-2023:2487 |
| AlmaLinux:9 | fwupd-plugin-flashrom | 1.8.10-2.el9.alma | ALSA-2023:2487 |