CVE-2022-1158

CVE Details

Release Date:	2022-08-05
Impact:	None	What is this?

Description

A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.

See more information about CVE-2022-1158 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:	7.8
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9264	2022-04-08
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9273	2022-04-11
Oracle Linux version 7 (kernel-uek)	ELSA-2022-9365	2022-05-10
Oracle Linux version 7 (kernel-uek-container)	ELSA-2022-9265	2022-04-08
Oracle Linux version 7 (kernel-uek-container)	ELSA-2022-9274	2022-04-11
Oracle Linux version 7 (kernel-uek-container)	ELSA-2022-9368	2022-05-10
Oracle Linux version 8 (kernel-uek)	ELSA-2022-9264	2022-04-08
Oracle Linux version 8 (kernel-uek)	ELSA-2022-9273	2022-04-11
Oracle Linux version 8 (kernel-uek)	ELSA-2022-9365	2022-05-10
Oracle Linux version 8 (kernel-uek-container)	ELSA-2022-9265	2022-04-08
Oracle Linux version 8 (kernel-uek-container)	ELSA-2022-9274	2022-04-11
Oracle Linux version 8 (kernel-uek-container)	ELSA-2022-9368	2022-05-10