CVE-2021-28971

Public on 2021-03-22
Modified on 2022-01-10
Description
A flaw was found in the Linux kernel. On some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled.
Severity
Medium severity
Medium
CVSS v3 Base Score
4.7
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 kernel 2021-05-20 ALAS-2021-1503 Fixed
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-01-11 ALAS2KERNEL-5.4-2022-002 Fixed

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 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv2 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C