CVE-2020-25656

CVE Details

Release Date:

2020-12-02

Description

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.

See more information about CVE-2020-25656 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:	4.1	Base Metrics:	AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Access Vector:	Local network	Attack Complexity:	High
Privileges Required:	High	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	None	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel)	ELSA-2021-0856	2021-03-17
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5995	2020-12-14
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5996	2020-12-15
Oracle Linux version 8 (kernel-uek)	ELSA-2020-5996	2020-12-15

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