CVE-2020-27820

Public on 2021-11-03

Modified on 2022-01-10

Description

A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if unbind the driver).

Severity

Low

See what this means

CVSS v3 Base Score

4.1

See breakdown

Affected Packages

Platform	Package	Release Date	Advisory
Amazon Linux 2 - Kernel-5.10 Extra	kernel	2024-02-01 20:10	ALAS2KERNEL-5.10-2024-049
Amazon Linux 2 - Kernel-5.10 Extra	kernel	2022-01-21 00:04	ALAS2KERNEL-5.10-2022-008
Amazon Linux 2 - Kernel-5.4 Extra	kernel	2022-01-20 19:13	ALAS2KERNEL-5.4-2022-010
Amazon Linux 2 - Kernel-5.4 Extra	kernel	2025-01-31 05:43	ALAS2KERNEL-5.4-2025-093

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	4.1	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD	CVSSv2	4.7	AV:L/AC:M/Au:N/C:N/I:N/A:C
NVD	CVSSv3	4.7	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2020-27820 Mitre: CVE-2020-27820 FAQs regarding Amazon Linux ALAS/CVE Severity