CVE-2021-47168

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

25/03/2024

Last modified:

17/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved: NFS: fix an incorrect limit in filelayout_decode_layout() The "sizeof(struct nfs_fh)" is two bytes too large and could lead to memory corruption. It should be NFS_MAXFHSIZE because that&#39;s the size of the ->data[] buffer. I reversed the size of the arguments to put the variable on the left.

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::::::::	2.6.37 (including)	4.4.271 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.271 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.235 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.193 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.124 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.42 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.12.9 (excluding)
cpe:2.3:o:linux:linux_kernel:5.13:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.13:rc2::::::
cpe:2.3:o:linux:linux_kernel:5.13:rc3::::::

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

CVE-2021-47168

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools