CVE-2021-4002

CVE Details

Release Date:

2022-03-03

Description

A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.

See more information about CVE-2021-4002 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:	4.4	Base Metrics:	AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Access Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	Low
Integrity Impact:	Low	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2022-9348	2022-05-03
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9313	2022-04-25
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9348	2022-05-03
Oracle Linux version 7 (kernel-uek-container)	ELSA-2022-9314	2022-04-25
Oracle Linux version 8 (kernel)	ELSA-2022-1988	2022-05-17
Oracle VM version 3 (kernel-uek)	OVMSA-2022-0014	2022-05-03

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