CVE-2020-12771

Public on 2020-05-09

Modified on 2020-07-21

Description

An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.

Severity

Low

See what this means

CVSS v3 Base Score

5.1

See breakdown

Affected Packages

Platform	Package	Release Date	Advisory
Amazon Linux 1	kernel	2020-07-14 21:14	ALAS-2020-1401
Amazon Linux 2 - Core	kernel	2020-07-21 16:34	ALAS2-2020-1465
Amazon Linux 2 - Kernel-5.4 Extra	kernel	2022-01-20 19:22	ALAS2KERNEL-5.4-2022-013

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	5.1	CVSS:3.1/AV:L/AC:H/PR:N/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
NVD	CVSSv3	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2020-12771 Mitre: CVE-2020-12771 FAQs regarding Amazon Linux ALAS/CVE Severity