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CVE-2021-47122

5.5 · 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…

Published Mar 15, 2024CWE-401EPSS 0.23%

Overview

CVE-2021-47122 is a medium-severity vulnerability. It was published on March 15, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/3be863c11cab725add9fef4237ed4e232c3fc3bbRefgit.kernel.org/stable/c/4bca2034b41c15b62d47a19158bb76235fd4455dRefgit.kernel.org/stable/c/6a0e317f61094d377335547e015dd2ff12caf893Refgit.kernel.org/stable/c/9348c1f10932f13b299cbc8b1bd5f780751fae49Refgit.kernel.org/stable/c/af2806345a37313f01b1c9f15e046745b8ee2daaRefgit.kernel.org/stable/c/b042e2b2039565eb8f0eb51c14fbe1ef463c8cd8Refgit.kernel.org/stable/c/b53558a950a89824938e9811eddfc8efcd94e1bbRefgit.kernel.org/stable/c/f52f4fd67264c70cd0b4ba326962ebe12d9cba94Refgit.kernel.org/stable/c/3be863c11cab725add9fef4237ed4e232c3fc3bbRefgit.kernel.org/stable/c/4bca2034b41c15b62d47a19158bb76235fd4455d

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47122?

CVE-2021-47122 is a medium-severity vulnerability. It was published on March 15, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-47122?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-47122?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-47122?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47122 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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