What is CVE-2021-47134?

CVE-2021-47134 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). CVE-2021-47134 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47134?

CVE-2021-47134 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-2021-47134?

No patch is currently available for CVE-2021-47134. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47134 actively exploited?

CVE-2021-47134 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-2021-47134

Medium

In the Linux kernel, the following vulnerability has been resolved: efi/fdt: fix panic when no valid fdt found setup_arch() would invoke efi_init()->efi_get_fdt_params(). If no valid fdt found then initial_boot_params will be null. So we should stop further fdt processing here. I encountered this issue on risc-v.

Package Linux Kernel

Published 2024-03-15

Last modified 2025-02-27

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-476

CVE-2021-47134 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

References

The following references provide additional information about CVE-2021-47134 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/5148066edbdc89c6fe5bc419c31a5c22e5f83bdb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/668a84c1bfb2b3fd5a10847825a854d63fac7baa
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8a7e8b4e5631a03ea2fee27957857a56612108ca
Patch

Details

CVE ID CVE-2021-47134

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-15

Modified 2025-02-27

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47134?

CVE-2021-47134 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) . CVE-2021-47134 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47134?

CVE-2021-47134 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-2021-47134?

No patch is currently available for CVE-2021-47134. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47134 actively exploited?

No — CVE-2021-47134 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (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. View CWE-476 on MITRE CWE →