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CVE-2022-40307

Public on 2022-09-09
Modified on 2022-11-02
Description

A race condition in the Linux kernel's EFI capsule loader driver was found in the way it handled write and flush operations on the device node of the EFI capsule. A local user could potentially use this flaw to crash the system.

Severity
Medium
See what this means
CVSS v3 Base Score
4.7
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2022-09-30 02:41 ALAS-2022-1636
Amazon Linux 2 - Core kernel 2022-09-30 07:04 ALAS2-2022-1852
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.10-2022-020
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.15-2022-008
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.4-2022-036
Amazon Linux 2023 kernel 2023-02-17 20:46 ALAS2023-2023-070

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H