CVE-2021-28038

CVE Details

Release Date:	2021-03-05
Impact:	None	What is this?

Description

An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

See more information about CVE-2021-28038 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:	6.5
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Changed
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2021-9215	2021-05-06
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9172	2021-04-12
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9215	2021-05-06
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9220	2021-05-10
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9175	2021-04-13
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9221	2021-06-01
Oracle Linux version 8 (kernel-uek)	ELSA-2021-9220	2021-05-10
Oracle Linux version 8 (kernel-uek-container)	ELSA-2021-9221	2021-06-01
Oracle VM version 3 (kernel-uek)	OVMSA-2021-0016	2021-05-06