← Back

CVE-2020-27786

nvd nist
Published: Dec 11, 2020Modified: Jun 17, 2026

JSON object

Loading...
7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

Description

A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected (14)

1 product
Linux Kernel
3 products
Enterprise Linux
Enterprise Mrg
Openshift Container Platform
2 products
Cloud Backup
Configuration A
6 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Before 4.4.224
From 4.10 to 4.14.181
From 4.15 to 4.19.124
From 4.20 to 5.4.42
From 4.5 to 4.9.224
From 5.5 to 5.6.14
Configuration B
6 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Version 7.0
Version 8.0
Version 2.0
Redhat
Version 4.4
Version 4.5
Version 4.6
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
All versions
All versions

References (8)

Source: secalert@redhat.com
Mailing List
Source: secalert@redhat.com
Issue TrackingPatchThird Party Advisory
Source: secalert@redhat.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.