#VU93438 Improper locking in Linux kernel - CVE-2023-52791

Vulnerability identifier: #VU93438

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-2023-52791

CWE-ID: CWE-667

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 locking within the drivers/i2c/i2c-core.h. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.4 - 5.4.261, 5.10 - 5.10.201, 5.15 - 5.15.139, 6.1 - 6.1.63, 6.5 - 6.5.12, 6.6 - 6.6.2, 6.7 rc1 - 6.7 rc7

---

External links
https://git.kernel.org/stable/c/25eb381a736e7ae39a4245ef5c96484eb1073809
https://git.kernel.org/stable/c/25284c46b657f48c0f3880a2e0706c70d81182c0
https://git.kernel.org/stable/c/f6237afabc349c1c7909db00e15d2816519e0d2b
https://git.kernel.org/stable/c/185f3617adc8fe45e40489b458f03911f0dec46c
https://git.kernel.org/stable/c/8c3fa52a46ff4d208cefb1a462ec94e0043a91e1
https://git.kernel.org/stable/c/3473cf43b9068b9dfef2f545f833f33c6a544b91
https://git.kernel.org/stable/c/aa49c90894d06e18a1ee7c095edbd2f37c232d02
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.202
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.140
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.262
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.64
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.13
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.3
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7

---

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?