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CVE-2021-47609

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: Fix string overflow in SCPI genpd driver Without the bound checks for scpi_pd->name, it could result in the…

Published Jun 19, 2024CWE-120EPSS 0.26%

Overview

CVE-2021-47609 is a high-severity vulnerability. It was published on June 19, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

firmware: arm_scpi: Fix string overflow in SCPI genpd driver

Without the bound checks for scpi_pd->name, it could result in the buffer

overflow when copying the SCPI device name from the corresponding device

tree node as the name string is set at maximum size of 30.

Let us fix it by using devm_kasprintf so that the string buffer is

allocated dynamically.

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/4694b1ec425a2d20d6f8ca3db594829fdf5f2672Refgit.kernel.org/stable/c/639901b9429a3195e0fead981ed74b51f5f31538Refgit.kernel.org/stable/c/7e8645ca2c0046f7cd2f0f7d569fc036c8abaedbRefgit.kernel.org/stable/c/802a1a8501563714a5fe8824f4ed27fec04a0719Refgit.kernel.org/stable/c/865ed67ab955428b9aa771d8b4f1e4fb7fd08945Refgit.kernel.org/stable/c/976389cbb16cee46847e5d06250a3a0b5506781eRefgit.kernel.org/stable/c/f0f484714f35d24ffa0ecb4afe3df1c5b225411dRefgit.kernel.org/stable/c/4694b1ec425a2d20d6f8ca3db594829fdf5f2672Refgit.kernel.org/stable/c/639901b9429a3195e0fead981ed74b51f5f31538Refgit.kernel.org/stable/c/7e8645ca2c0046f7cd2f0f7d569fc036c8abaedb

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47609?

CVE-2021-47609 is a high-severity vulnerability. It was published on June 19, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-47609?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-47609?

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-2021-47609?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47609 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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