CVE-2023-3439

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.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
http://www.openwall.com/lists/oss-security/2023/07/02/1	Mailing List Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2217915	Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269	Patch
http://www.openwall.com/lists/oss-security/2023/07/02/1	Mailing List Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2217915	Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.18:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.18:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.18:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.18:rc4::::::

History

No history.

Information

Published : 2023-06-28 21:15

Updated : 2025-03-10 21:15

NVD link : CVE-2023-3439

Mitre link : CVE-2023-3439

CVE.ORG link : CVE-2023-3439

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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