CVE-2021-35477
Public on 2021-08-02
Modified on 2024-03-01
Description
A flaw in the Linux kernel allows a privileged BPF program to obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel in the eBPF subsystem
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2021-09-30 | ALAS-2021-1539 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | Not Affected | ||
| Amazon Linux 2 - Core | kernel | 2021-08-04 | ALAS2-2021-1696 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2022-01-20 | ALAS2KERNEL-5.10-2022-004 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2022-01-20 | ALAS2KERNEL-5.4-2022-006 | Fixed |
| Amazon Linux 2023 | kernel | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVD | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | CVSSv2 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |