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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
See what this means
CVSS v3 Base Score
4.4
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2021-09-30 19:25 ALAS-2021-1539
Amazon Linux 2 - Core kernel 2021-08-04 20:32 ALAS2-2021-1696
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-01-20 23:43 ALAS2KERNEL-5.10-2022-004
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-01-20 19:03 ALAS2KERNEL-5.4-2022-006

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