CVE-2024-43873

In the Linux kernel, the following vulnerability has been resolved: vhost/vsock: always initialize seqpacket_allow There are two issues around seqpacket_allow: 1. seqpacket_allow is not initialized when socket is created. Thus if features are never set, it will be read uninitialized. 2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared, then seqpacket_allow will not be cleared appropriately (existing apps I know about don't usually do this but it's legal and there's no way to be sure no one relies on this). To fix: - initialize seqpacket_allow after allocation - set it unconditionally in set_features

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22	Patch
https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb	Patch
https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582	Patch
https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c	Patch
https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b	Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

03 Nov 2025, 22:18

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html -

Information

Published : 2024-08-21 01:15

Updated : 2025-11-03 22:18

NVD link : CVE-2024-43873

Mitre link : CVE-2024-43873

CVE.ORG link : CVE-2024-43873

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-909

Missing Initialization of Resource

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