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CVE-2023-52983

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bic_set_bfqq() After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"), bic-…

Published Mar 27, 2025CWE-416EPSS 0.28%

Overview

CVE-2023-52983 is a high-severity vulnerability. It was published on March 27, 2025 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:

block, bfq: fix uaf for bfqq in bic_set_bfqq()

After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"),

bic->bfqq will be accessed in bic_set_bfqq(), however, in some context

bic->bfqq will be freed, and bic_set_bfqq() is called with the freed

bic->bfqq.

Fix the problem by always freeing bfqq after bic_set_bfqq().

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/511c922c5bf6c8a166bea826e702336bc2424140Refgit.kernel.org/stable/c/7f77f3dab5066a7c9da73d72d1eee895ff84a8d5Refgit.kernel.org/stable/c/b600de2d7d3a16f9007fad1bdae82a3951a26af2Refgit.kernel.org/stable/c/cb1876fc33af26d00efdd473311f1b664c77c44e

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52983?

CVE-2023-52983 is a high-severity vulnerability. It was published on March 27, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52983?

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-2023-52983?

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-2023-52983?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52983 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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