CVE-2021-31916

CVE Details

Release Date:

2021-05-06

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

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	6.7	Base Metrics:	AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Access Vector:	Local network	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

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team