#VU92015 Improper locking in Linux kernel - CVE-2023-52782

Vulnerability identifier: #VU92015

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-2023-52782

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 mlx5e_txwqe_complete() function in drivers/net/ethernet/mellanox/mlx5/core/en_tx.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
http://git.kernel.org/stable/c/a9d6c0c5a6bd9ca88e964f8843ea41bc085de866
http://git.kernel.org/stable/c/4d510506b46504664eacf8a44a9e8f3e54c137b8
http://git.kernel.org/stable/c/7e3f3ba97e6cc6fce5bf62df2ca06c8e59040167

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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.