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CVE-2021-32399

Public on 2021-05-10
Modified on 2021-07-15
Description

A flaw was found in the Linux kernel's handling of the removal of Bluetooth HCI controllers. This flaw allows an attacker with a local account to exploit a race condition, leading to corrupted memory and possible privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Severity
Important
See what this means
CVSS v3 Base Score
7.0
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core kernel 2021-07-14 20:35 ALAS2-2021-1685
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-01-20 23:37 ALAS2KERNEL-5.10-2022-002
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-01-12 19:26 ALAS2KERNEL-5.4-2022-004

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P
NVD CVSSv3 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2021-32399 Mitre: CVE-2021-32399 FAQs regarding Amazon Linux ALAS/CVE Severity