#VU92023 Improper locking in Linux kernel - CVE-2023-52689

Vulnerability identifier: #VU92023

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-2023-52689

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 scarlett2_meter_ctl_get() function in sound/usb/mixer_scarlett2.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.7, 6.7 rc1, 6.7 rc2, 6.7 rc3, 6.7 rc5, 6.7 rc6, 6.7 rc7, 6.7.1, 6.8 rc1, 6.8 rc2, 6.8 rc5

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External links
https://git.kernel.org/stable/c/74e3de7cdcc31ce75ab42350ae0946eff62a2da2
https://git.kernel.org/stable/c/993f7b42fa066b055e3a19b7f76ad8157c0927a0
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.2
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8

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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.