What is CVE-2021-47122?

CVE-2021-47122 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-2021-47122 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47122?

CVE-2021-47122 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-2021-47122?

No patch is currently available for CVE-2021-47122. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47122 actively exploited?

CVE-2021-47122 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-2021-47122

Medium

In the Linux kernel, the following vulnerability has been resolved: net: caif: fix memory leak in caif_device_notify In case of caif_enroll_dev() fail, allocated link_support won't be assigned to the corresponding structure. So simply free allocated pointer in case of error

Package Linux Kernel

Published 2024-03-15

Last modified 2025-01-07

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-2021-47122 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-2021-47122 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/3be863c11cab725add9fef4237ed4e232c3fc3bb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4bca2034b41c15b62d47a19158bb76235fd4455d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6a0e317f61094d377335547e015dd2ff12caf893
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2021-47122

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-15

Modified 2025-01-07

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47122?

CVE-2021-47122 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-2021-47122 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47122?

CVE-2021-47122 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-2021-47122?

No patch is currently available for CVE-2021-47122. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47122 actively exploited?

No — CVE-2021-47122 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 →