#VU102200 Improper error handling in Linux kernel - CVE-2024-56674

Vulnerability identifier: #VU102200

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-2024-56674

CWE-ID: CWE-388

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 improper error handling within the virtnet_enable_queue_pair() and remove_vq_common() functions in drivers/net/virtio_net.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12, 6.12.1, 6.12.2, 6.12.3, 6.12.4, 6.12.5

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External links
https://git.kernel.org/stable/c/3ddccbefebdbe0c4c72a248676e4d39ac66a8e26
https://git.kernel.org/stable/c/b4294d4ac61fbb382811a1d64eaf81f446ce2af4
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.6

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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.