CVE-2023-52679
HighIn 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.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-415CVE-2023-52679 is classified as CWE-415
See CWE-415 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2023-52679 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Mailing List
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Mailing List
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PatchKernel patch commithttps://git.kernel.org/stable/c/26b4d702c44f9e5cf3c5c001ae619a4a001889db
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PatchKernel patch commithttps://git.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21
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PatchKernel patch commithttps://git.kernel.org/stable/c/4dde83569832f9377362e50f7748463340c5db6b
Frequently asked questions
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What is CVE-2023-52679?
CVE-2023-52679 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2023-52679 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2023-52679?
CVE-2023-52679 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2023-52679?
No patch is currently available for CVE-2023-52679. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2023-52679 actively exploited?
No — CVE-2023-52679 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.