Description
A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
Published: 2023-06-28
Score: 4.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-44103 A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
Ubuntu USN Ubuntu USN USN-6246-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6255-1 Linux kernel (Intel IoTG) vulnerabilities
History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 6e-05}

epss

{'score': 8e-05}


Mon, 10 Mar 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: fedora

Published:

Updated: 2025-03-10T21:08:54.880Z

Reserved: 2023-06-28T00:00:00.000Z

Link: CVE-2023-3439

cve-icon Vulnrichment

Updated: 2024-08-02T06:55:03.477Z

cve-icon NVD

Status : Analyzed

Published: 2023-06-28T21:15:10.517

Modified: 2025-06-25T20:53:15.413

Link: CVE-2023-3439

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-06-26T00:00:00Z

Links: CVE-2023-3439 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses