CVE-2021-47474

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

22/05/2024

Last modified:

24/09/2025

Description

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doing bulk transfers.

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

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.31 (including)	4.4.292 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.290 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.255 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.217 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.159 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.79 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.14.18 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.15 (including)	5.15.2 (excluding)

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

CVE-2021-47474

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools