CVE-2021-3679

CVE Details

Release Date:

2021-08-05

Description

A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.

See more information about CVE-2021-3679 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:	5.5	Base Metrics:	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9460	2021-09-22
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9485	2021-10-14
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9458	2021-09-22
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9488	2021-10-14
Oracle Linux version 8 (kernel)	ELSA-2021-4356	2021-11-16

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