What is CVE-2021-47513?

CVE-2021-47513 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), affecting Linux kernel versions from 5.14.14 onward and patched in 5.15.8 and 5.16. CVE-2021-47513 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47513?

CVE-2021-47513 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-2021-47513?

Yes, CVE-2021-47513 has been patched. Fixed versions include 5.15.8 and 5.16. If you are running Linux kernel 5.14.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47513 actively exploited?

CVE-2021-47513 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-2021-47513

Medium

In the Linux kernel, the following vulnerability has been resolved: net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering Avoid a memory leak if there is not a CPU port defined. Addresses-Coverity-ID: 1492897 ("Resource leak") Addresses-Coverity-ID: 1492899 ("Resource leak")

Package Linux Kernel

Published 2024-05-24

Last modified 2024-11-21

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-401

CVE-2021-47513 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

Affected versions

Linux kernel versions 5.14.14, 5.15 and later are affected. Fixed in 5.15.8, 5.16 and their respective stable series.

Affected from

≥ 5.14.14 ≥ 5.15

Fixed in

✓ 5.15.8 5.15.x ✓ 5.16

References

2 total

Kernel Git
https://git.kernel.org/stable/c/973a0373e88cc19129bd6ef0ec193040535397d9

Patch
Kernel Git
https://git.kernel.org/stable/c/e8b1d7698038e76363859fb47ae0a262080646f5

Patch

Details

CVE ID CVE-2021-47513

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-24

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47513?

CVE-2021-47513 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) . It affects Linux kernel versions from 5.14.14 onward and has been patched in 5.15.8 and 5.16. CVE-2021-47513 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47513?

CVE-2021-47513 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-2021-47513?

Yes. CVE-2021-47513 has been patched. Fixed versions include 5.15.8 and 5.16. If you are running Linux kernel 5.14.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47513 actively exploited?

No. CVE-2021-47513 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.