CVE-2022-2153

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

31/08/2022

Last modified:

21/11/2022

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.18 (excluding)
cpe:2.3:o:fedoraproject:fedora:36:::::::*
cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.18 (excluding)
cpe:2.3:o:fedoraproject:fedora:36:::::::*
cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*

CVE-2022-2153

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools