#VU96197 Input validation error in Linux kernel - CVE-2024-43839

Vulnerability identifier: #VU96197

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-2024-43839

CWE-ID: CWE-20

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 input validation within the bnad_tx_msix_register() and bnad_rx_msix_register() functions in drivers/net/ethernet/brocade/bna/bnad.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/ab748dd10d8742561f2980fea08ffb4f0cacfdef
https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43
https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09fa200ff5
https://git.kernel.org/stable/c/c9741a03dc8e491e57b95fba0058ab46b7e506da

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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.