#VU70875 Buffer overflow in Linux kernel - CVE-2022-3541

Vulnerability identifier: #VU70875

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3541

CWE-ID: CWE-119

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 escalate privileges on the system.

The vulnerability exists due to a boundary error within the spl2sw_nvmem_get_mac_address() function in drivers/net/ethernet/sunplus/spl2sw_driver.c in Linux kernel BPF implementation. A local user can trigger memory corruption and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: before 6.1, 6.1

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External links
https://vuldb.com/?id.211041
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=12aece8b01507a2d357a1861f470e83621fbb6f2
https://security.netapp.com/advisory/ntap-20221228-0001/

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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.