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CVE-2021-47425

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: i2c: acpi: fix resource leak in reconfiguration device addition acpi_i2c_find_adapter_by_handle() calls bus_find_device() which…

Published May 21, 2024CWE-401EPSS 0.23%

Overview

CVE-2021-47425 is a medium-severity vulnerability. It was published on May 21, 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:

i2c: acpi: fix resource leak in reconfiguration device addition

acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a

reference on the adapter which is never released which will result in a

reference count leak and render the adapter unremovable. Make sure to

put the adapter after creating the client in the same manner that we do

for OF.

[wsa: fixed title]

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/3d9d458a8aaafa47268ea4f1b4114a9f12927989Refgit.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494bRefgit.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950fRefgit.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694Refgit.kernel.org/stable/c/b8090a84d7758b929d348bafbd86bb7a10c5fb63Refgit.kernel.org/stable/c/f86de018fd7a24ee07372d55ffa7824f0c674a95Refgit.kernel.org/stable/c/3d9d458a8aaafa47268ea4f1b4114a9f12927989Refgit.kernel.org/stable/c/60bacf259e8c2eb2324f3e13275200baaee9494bRefgit.kernel.org/stable/c/6558b646ce1c2a872fe1c2c7cb116f05a2c1950fRefgit.kernel.org/stable/c/90f1077c9184ec2ae9989e4642f211263f301694

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47425?

CVE-2021-47425 is a medium-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-47425?

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-2021-47425?

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-2021-47425?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47425 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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