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CVE-2023-52679

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: of: Fix double free in of_parse_phandle_with_args_map In of_parse_phandle_with_args_map() the inner loop that iterates through…

Published May 17, 2024CWE-415EPSS 0.25%

Overview

CVE-2023-52679 is a high-severity vulnerability. It was published on May 17, 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:

of: Fix double free in of_parse_phandle_with_args_map

In of_parse_phandle_with_args_map() the inner loop that

iterates through the map entries calls of_node_put(new)

to free the reference acquired by the previous iteration

of the inner loop. This assumes that the value of "new" is

NULL on the first iteration of the inner loop.

Make sure that this is true in all iterations of the outer

loop by setting "new" to NULL after its value is assigned to "cur".

Extend the unittest to detect the double free and add an additional

test case that actually triggers this path.

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/26b4d702c44f9e5cf3c5c001ae619a4a001889dbRefgit.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21Refgit.kernel.org/stable/c/4dde83569832f9377362e50f7748463340c5db6bRefgit.kernel.org/stable/c/a0a061151a6200c13149dbcdb6c065203c8425d2Refgit.kernel.org/stable/c/b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8Refgit.kernel.org/stable/c/b9d760dae5b10e73369b769073525acd7b3be2bdRefgit.kernel.org/stable/c/cafa992134124e785609a406da4ff2b54052aff7Refgit.kernel.org/stable/c/d5f490343c77e6708b6c4aa7dbbfbcbb9546adeaRefgit.kernel.org/stable/c/26b4d702c44f9e5cf3c5c001ae619a4a001889dbRefgit.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52679?

CVE-2023-52679 is a high-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52679?

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-2023-52679?

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-2023-52679?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52679 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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