CVE-2021-31916

 

Published at: - 06-05-2021 07:15

Last modified: - 26-10-2022 01:44

Total changes: - 7

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://seclists.org/oss-sec/2021/q1/268
• https://bugzilla.redhat.com/show_bug.cgi?id=1946965
• https://github.com/torvalds/linux/commit/4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7a
• [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update-Mailing List, Third Party Advisory
• [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2021-31916

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures