What is CVE-2021-47241?

CVE-2021-47241 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10. CVE-2021-47241 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47241?

CVE-2021-47241 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-47241?

No patch is currently available for CVE-2021-47241. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47241 actively exploited?

CVE-2021-47241 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47241

High

In the Linux kernel, the following vulnerability has been resolved: ethtool: strset: fix message length calculation Outer nest for ETHTOOL_A_STRSET_STRINGSETS is not accounted for. This may result in ETHTOOL_MSG_STRSET_GET producing a warning like: calculated message payload length (684) not sufficient WARNING: CPU: 0 PID: 30967 at net/ethtool/netlink.c:369 ethnl_default_doit+0x87a/0xa20 and a splat. As usually with such warnings three conditions must be met for the warning to trigger: - there must be no skb size rounding up (e.g. reply_size of 684); - string set must be per-device (so that the header gets populated); - the device name must be at least 12 characters long. all in all with current user space it looks like reading priv flags is the only place this could potentially happen. Or with syzbot :)

Package Linux Kernel

Published 2024-05-21

Last modified 2025-04-04

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-266

CVE-2021-47241 is classified as CWE-266

See CWE-266 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-47241 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/cfc7f0e70d649e6d2233fba0d9390b525677d971
Patch
Kernel patch commit
https://git.kernel.org/stable/c/e175aef902697826d344ce3a12189329848fe898
Patch
Kernel patch commit
https://git.kernel.org/stable/c/fb3a948143688e14e2cfd2a2812877923d0e5e92
Patch

Details

CVE ID CVE-2021-47241

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-04-04

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47241?

CVE-2021-47241 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . CVE-2021-47241 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47241?

CVE-2021-47241 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-47241?

No patch is currently available for CVE-2021-47241. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47241 actively exploited?

No — CVE-2021-47241 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.