#VU100078 Improper locking in Linux kernel - CVE-2024-50155

Vulnerability identifier: #VU100078

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-2024-50155

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 nsim_dev_trap_report_work() and nsim_dev_traps_init() functions in drivers/net/netdevsim/dev.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/24973f4b64f93232a48fe78029385de762a2418d
https://git.kernel.org/stable/c/681ce79ab6fba2f8d1c5ea60239f0086baebd0d3
https://git.kernel.org/stable/c/32f054f93937b548c61b3bf57d8f4aefc50f3b16
https://git.kernel.org/stable/c/a1494d532e28598bde7a5544892ef9c7dbfafa93

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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.