#VU102991 Input validation error in Linux kernel - CVE-2024-55639

Vulnerability identifier: #VU102991

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-2024-55639

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 rswitch_device_alloc(), of_node_put() and rswitch_device_free() functions in drivers/net/ethernet/renesas/rswitch.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/66b7e9f85b8459c823b11e9af69dbf4be5eb6be8
https://git.kernel.org/stable/c/92007a28f95413058a7268dc84e5f44b700165d1
https://git.kernel.org/stable/c/bf8c6755f02029d1eddc3ff19b870240f054afc7

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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.