CVE-2020-28974

CVE Details

Release Date:

2020-11-20

Description

A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.

See more information about CVE-2020-28974 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:	5	Base Metrics:	AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Access Vector:	Physical	Attack Complexity:	Low
Privileges Required:	High	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	Low
Integrity Impact:	Low	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (dtrace-modules-3.8.13-118.53.1.el6uek)	ELSA-2021-9001	2021-01-07
Oracle Linux version 6 (kernel-uek)	ELSA-2021-9001	2021-01-07
Oracle Linux version 6 (kernel-uek)	ELSA-2021-9002	2021-01-07
Oracle Linux version 6 (kernel-uek)	ELSA-2021-9043	2021-02-09
Oracle Linux version 7 (dtrace-modules-3.8.13-118.53.1.el7uek)	ELSA-2021-9001	2021-01-07
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 7 (kernel-uek)	ELSA-2021-9001	2021-01-07
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9002	2021-01-07
Oracle Linux version 8 (kernel)	ELSA-2021-1578	2021-05-25
Oracle Linux version 8 (kernel-uek)	ELSA-2020-5996	2020-12-15
Oracle VM version 3.4 (kernel-uek)	OVMSA-2021-0001	2021-01-07

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