What is CVE-2021-47426?

CVE-2021-47426 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401). CVE-2021-47426 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47426?

CVE-2021-47426 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-2021-47426?

No patch is currently available for CVE-2021-47426. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47426 actively exploited?

CVE-2021-47426 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2021-47426

Medium

In the Linux kernel, the following vulnerability has been resolved: bpf, s390: Fix potential memory leak about jit_data Make sure to free jit_data through kfree() in the error path.

Package Linux Kernel

Published 2024-05-21

Last modified 2024-12-31

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-401

CVE-2021-47426 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-47426 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/29fdb11ca88d3c490a3d56f0dc77eb9444d086be
Patch
Kernel patch commit
https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd
Patch
Kernel patch commit
https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2021-47426

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2024-12-31

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47426?

CVE-2021-47426 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . CVE-2021-47426 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47426?

CVE-2021-47426 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-2021-47426?

No patch is currently available for CVE-2021-47426. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47426 actively exploited?

No — CVE-2021-47426 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →