#VU101105 NULL pointer dereference in Linux kernel - CVE-2024-53120

Vulnerability identifier: #VU101105

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-2024-53120

CWE-ID: CWE-476

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 NULL pointer dereference within the mlx5_tc_ct_entry_add_rule() function in drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.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/06dc488a593020bd2f006798557d2a32104d8359
https://git.kernel.org/stable/c/0c7c70ff8b696cfedba350411dca736361ef9a0f
https://git.kernel.org/stable/c/6030f8bd7902e9e276a0edc09bf11979e4e2bc2e
https://git.kernel.org/stable/c/e99c6873229fe0482e7ceb7d5600e32d623ed9d9

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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.