#VU96300 Use of uninitialized resource in Linux kernel - CVE-2024-43873

Vulnerability identifier: #VU96300

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-43873

CWE-ID: CWE-908

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to use of uninitialized resource within the vhost_vsock_dev_open() and vhost_vsock_set_features() functions in drivers/vhost/vsock.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c
https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb
https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582
https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b
https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.