#VU102936 Improper locking in Linux kernel - CVE-2024-57876

Vulnerability identifier: #VU102936

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-2024-57876

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 drm_dp_mst_topology_mgr_set_mst(), EXPORT_SYMBOL(), update_msg_rx_state() and drm_dp_mst_hpd_irq_handle_event() functions in drivers/gpu/drm/display/drm_dp_mst_topology.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/94b33b2d7640e807869451384eb88321dd0ffbd4
https://git.kernel.org/stable/c/a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7
https://git.kernel.org/stable/c/be826b4451fd187a7c0b04be4f8243d5df6e0450
https://git.kernel.org/stable/c/d834d20d2e86c52ed5cab41763fa61e6071680ef

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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.