CVE-2020-27786

CVE Details

Release Date:	2020-12-11
Impact:	None	What is this?

Description

A flaw was found in the Linux kernels implementation of MIDI, where an attacker with a local account and the permissions to issue an ioctl commands to midi devices, could trigger a use-after-free. A write to this specific memory while freed and before use could cause the flow of execution to change and possibly allow for memory corruption or privilege escalation.

See more information about CVE-2020-27786 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:	7.8
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
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-2021-9030	2021-02-03
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9030	2021-02-03
Oracle Linux version 8 (kernel)	ELSA-2021-1578	2021-05-25
Oracle VM version 3.4 (kernel-uek)	OVMSA-2021-0005	2021-02-04