What is CVE-2021-47172?

CVE-2021-47172 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2021-47172 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47172?

CVE-2021-47172 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-47172?

No patch is currently available for CVE-2021-47172. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47172 actively exploited?

CVE-2021-47172 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47172

Medium

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers Channel numbering must start at 0 and then not have any holes, or it is possible to overflow the available storage. Note this bug was introduced as part of a fix to ensure we didn't rely on the ordering of child nodes. So we need to support arbitrary ordering but they all need to be there somewhere. Note I hit this when using qemu to test the rest of this series. Arguably this isn't the best fix, but it is probably the most minimal option for backporting etc. Alexandru's sign-off is here because he carried this patch in a larger set that Jonathan then applied.

Package Linux Kernel

Published 2024-03-25

Last modified 2025-04-30

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-120

CVE-2021-47172 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-47172 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/26da8040eccc6c6b0e415e9a3baf72fd39eb2fdc
Patch
Kernel patch commit
https://git.kernel.org/stable/c/f2a772c51206b0c3f262e4f6a3812c89a650191b
Patch
Kernel patch commit
https://git.kernel.org/stable/c/f49149964d2423fb618fb6b755bb1eaa431cca2c
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2021-47172

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-25

Modified 2025-04-30

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47172?

CVE-2021-47172 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-47172 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47172?

CVE-2021-47172 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-47172?

No patch is currently available for CVE-2021-47172. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47172 actively exploited?

No — CVE-2021-47172 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.