CVSS Score of 10 (low)


Published Jun 28, 2023
Updated: Jul 6, 2023
CWE ID 416


CVE-2023-3439 is a vulnerability in the MCTP protocol in the Linux kernel. It affects multiple products, including Qtrc2o, Qtrc2i, ohMfk2, and Qtrc2m. The vulnerability occurs when the function mctp_unregister() reclaims a device's resource when a netcard detaches, but a running routine may cause the use-after-free of the mdev->addrs object. This can potentially lead to a denial of service. The vulnerability has a CVSS score of 4.7, indicating medium severity. To remediate this issue, users should apply the necessary patches or updates provided by the Linux kernel maintainers.

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