What is CVE-2021-47141?

CVE-2021-47141 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.3 onward and patched in 5.4.124, 5.10.42, 5.12.9 and others. CVE-2021-47141 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47141?

CVE-2021-47141 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-2021-47141?

Yes, CVE-2021-47141 has been patched. Fixed versions include 5.4.124, 5.10.42, 5.12.9 and others. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47141 actively exploited?

CVE-2021-47141 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2021-47141

Medium

In the Linux kernel, the following vulnerability has been resolved: gve: Add NULL pointer checks when freeing irqs. When freeing notification blocks, we index priv->msix_vectors. If we failed to allocate priv->msix_vectors (see abort_with_msix_vectors) this could lead to a NULL pointer dereference if the driver is unloaded.

Package Linux Kernel

Published 2024-03-25

Last modified 2024-12-20

CVSS version 3.1

Patch available

Yes

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-476

CVE-2021-47141 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.3 and later are affected. Fixed in 5.4.124, 5.10.42, 5.12.9, 5.13 and their respective stable series.

Affected from

≥ 5.3

Fixed in

✓ 5.4.124 5.4.x ✓ 5.10.42 5.10.x ✓ 5.12.9 5.12.x ✓ 5.13

References

4 total

Kernel Git
https://git.kernel.org/stable/c/5218e919c8d06279884aa0baf76778a6817d5b93

Patch
Kernel Git
https://git.kernel.org/stable/c/5278c75266c5094d3c0958793bf12fc90300e580

Patch
Kernel Git
https://git.kernel.org/stable/c/821149ee88c206fa37e79c1868cc270518484876

Patch
Kernel Git
https://git.kernel.org/stable/c/da21a35c00ff1a1794d4f166d3b3fa8db4d0f6fb

Patch

Details

CVE ID CVE-2021-47141

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-25

Modified 2024-12-20

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47141?

CVE-2021-47141 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.3 onward and has been patched in 5.4.124, 5.10.42, 5.12.9 and others. CVE-2021-47141 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47141?

CVE-2021-47141 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-2021-47141?

Yes. CVE-2021-47141 has been patched. Fixed versions include 5.4.124, 5.10.42, 5.12.9 and others. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47141 actively exploited?

No. CVE-2021-47141 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.