CVE-2021-31916

CVE Details

Release Date:	2021-05-06
Impact:	None	What is this?

Description

An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

See more information about CVE-2021-31916 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	6.7
Vector String:	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	High
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2021-9346	2021-07-02
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9305	2021-06-14
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9306	2021-06-15
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9346	2021-07-02
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9307	2021-06-15
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9308	2021-06-15
Oracle Linux version 8 (kernel)	ELSA-2021-4356	2021-11-16
Oracle Linux version 8 (kernel-uek)	ELSA-2021-9306	2021-06-15
Oracle Linux version 8 (kernel-uek-container)	ELSA-2021-9307	2021-06-15
Oracle VM version 3 (kernel-uek)	OVMSA-2021-0022	2021-07-06