What is CVE-2021-47050?

CVE-2021-47050 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 5.9 onward and patched in 5.10.37, 5.11.21, 5.12.4 and others. CVE-2021-47050 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47050?

CVE-2021-47050 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-2021-47050?

Yes, CVE-2021-47050 has been patched. Fixed versions include 5.10.37, 5.11.21, 5.12.4 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47050 actively exploited?

CVE-2021-47050 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-2021-47050

Medium

In the Linux kernel, the following vulnerability has been resolved: memory: renesas-rpc-if: fix possible NULL pointer dereference of resource The platform_get_resource_byname() can return NULL which would be immediately dereferenced by resource_size(). Instead dereference it after validating the resource. Addresses-Coverity: Dereference null return value

Package Linux Kernel

Published 2024-02-28

Last modified 2024-12-09

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-2021-47050 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 5.9 and later are affected. Fixed in 5.10.37, 5.11.21, 5.12.4, 5.13 and their respective stable series.

Affected from

≥ 5.9

Fixed in

✓ 5.10.37 5.10.x ✓ 5.11.21 5.11.x ✓ 5.12.4 5.12.x ✓ 5.13

References

4 total

Kernel Git
https://git.kernel.org/stable/c/59e27d7c94aa02da039b000d33c304c179395801

Patch
Kernel Git
https://git.kernel.org/stable/c/71bcc1b4a1743534d8abdcb57ff912e6bc390438

Patch
Kernel Git
https://git.kernel.org/stable/c/a74cb41af7dbe019e4096171f8bc641c7ce910ad

Patch
Kernel Git
https://git.kernel.org/stable/c/e16acc3a37f09e18835dc5d8014942c2ef6ca957

Patch

Details

CVE ID CVE-2021-47050

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-28

Modified 2024-12-09

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47050?

CVE-2021-47050 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 5.9 onward and has been patched in 5.10.37, 5.11.21, 5.12.4 and others. CVE-2021-47050 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47050?

CVE-2021-47050 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-2021-47050?

Yes. CVE-2021-47050 has been patched. Fixed versions include 5.10.37, 5.11.21, 5.12.4 and others. If you are running Linux kernel 5.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47050 actively exploited?

No. CVE-2021-47050 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.