CVE-2022-2153

CVE Details

Release Date:	2022-08-31
Impact:	None	What is this?

Description

A flaw was found in the Linux kernel's KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

See more information about CVE-2022-2153 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:	5.5
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version:	3.0
Attack Vector:	Local
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-2022-9709	2022-08-15
Oracle Linux version 7 (kernel-uek-container)	ELSA-2022-9710	2022-08-15
Oracle Linux version 8 (kernel-uek)	ELSA-2022-9709	2022-08-15
Oracle Linux version 8 (kernel-uek-container)	ELSA-2022-9710	2022-08-15