#VU99209 Input validation error in Linux kernel - CVE-2022-48964

Vulnerability identifier: #VU99209

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-2022-48964

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 ravb_rx_gbeth() function in drivers/net/ethernet/renesas/ravb_main.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.0, 6.0 rc1, 6.0 rc2, 6.0 rc3, 6.0 rc4, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.6, 6.0.7, 6.0.8, 6.0.9, 6.0.10, 6.0.11, 6.0.12, 6.1 rc1, 6.1 rc3, 6.1 rc7

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External links
https://git.kernel.org/stable/c/e63c681494dcc0527c625a0a4f59bf10259f5ee0
https://git.kernel.org/stable/c/5a5a3e564de6a8db987410c5c2f4748d50ea82b8
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1

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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.