#VU104726 Input validation error in Linux kernel - CVE-2022-49226

Vulnerability identifier: #VU104726

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-2022-49226

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 ax88772_bind() and ax88178_reset() functions in drivers/net/usb/asix_devices.c, within the asix_read_cmd(), asix_check_host_enable() and asix_mdio_read_nopm() functions in drivers/net/usb/asix_common.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.15, 5.15 rc1, 5.15 rc2, 5.15 rc3, 5.15 rc4, 5.15 rc5, 5.15 rc6, 5.15 rc7, 5.15.0, 5.15.1, 5.15.2, 5.15.3, 5.15.4, 5.15.5, 5.15.6, 5.15.7, 5.15.8, 5.15.9, 5.15.10, 5.15.11, 5.15.12, 5.15.13, 5.15.14, 5.15.15, 5.15.16, 5.15.17, 5.15.18, 5.15.19, 5.15.20, 5.15.21, 5.15.22, 5.15.23, 5.15.24, 5.15.25, 5.15.26, 5.15.27, 5.15.28, 5.15.29, 5.15.30, 5.15.31, 5.15.32

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External links
https://git.kernel.org/stable/c/662ff765470ad0d11a1153d6d8e99d69a98e60b4
https://git.kernel.org/stable/c/920a9fa27e7805499cfe78491b36fed2322c02ec
https://git.kernel.org/stable/c/9ea8d2fca8fea3b17005b4dc02f8ef15f7a2fb97
https://git.kernel.org/stable/c/b96a7265f763b37ff3138b9ca8122a950f13b00e
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.33

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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.