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CVE-2021-47313

8.4 · HIGH

In the Linux kernel, the following vulnerability has been resolved: cpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init It's a classic example of memleak, we allocate something, we fail…

Published May 21, 2024CWE-400EPSS 0.26%

Overview

CVE-2021-47313 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

cpufreq: CPPC: Fix potential memleak in cppc_cpufreq_cpu_init

It's a classic example of memleak, we allocate something, we fail and

never free the resources.

Make sure we free all resources on policy ->init() failures.

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/b775383355755885b19d2acef977f1ca132e80a3Refgit.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2Refgit.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1bRefgit.kernel.org/stable/c/b775383355755885b19d2acef977f1ca132e80a3Refgit.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2Refgit.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47313?

CVE-2021-47313 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2021-47313?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-47313?

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-2021-47313?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47313 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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