CVEvulnerability

CVE-2020-27786

7.8 HIGH Published 2020-12-11 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-12-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-416

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 configurations

• linux linux kernel (< 4.4.224) • linux linux kernel (>= 4.5 < 4.9.224) • linux linux kernel (>= 4.10 < 4.14.181) • linux linux kernel (>= 4.15 < 4.19.124) • linux linux kernel (>= 4.20 < 5.4.42) • linux linux kernel (>= 5.5 < 5.6.14) • redhat openshift container platform 4.4 • redhat openshift container platform 4.5 • redhat openshift container platform 4.6 • redhat enterprise linux 7.0 • redhat enterprise linux 8.0 • redhat enterprise mrg 2.0 • netapp cloud backup • netapp solidfire baseboard management controller

Related

Weakness · CWE (1)

References