#VU100834 Improper locking in Linux kernel - CVE-2024-53093

Vulnerability identifier: #VU100834

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-2024-53093

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 nvme_add_ns_head_cdev(), nvme_mpath_alloc_disk(), nvme_mpath_set_live(), nvme_mpath_shutdown_disk() and nvme_mpath_remove_disk() functions in drivers/nvme/host/multipath.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/1f021341eef41e77a633186e9be5223de2ce5d48
https://git.kernel.org/stable/c/4a57f42e5ed42cb8f1beb262c4f6d3e698939e4e
https://git.kernel.org/stable/c/60de2e03f984cfbcdc12fa552f95087c35a05a98
https://git.kernel.org/stable/c/a91b7eddf45afeeb9c5ece11dddff5de0921b00f

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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.