CVE-2021-37576

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

26/07/2021

Last modified:

07/11/2023

Description

arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

7.20

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.10 (including)	4.4.277 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.277 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.241 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.199 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.136 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.54 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.13.6 (excluding)
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*

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

CVE-2021-37576

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools