#VU100072 NULL pointer dereference in Linux kernel - CVE-2024-50147

Vulnerability identifier: #VU100072

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-2024-50147

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_cmd_comp_handler(), mlx5_cmd_trigger_completions() and mlx5_cmd_enable() functions in drivers/net/ethernet/mellanox/mlx5/core/cmd.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/d1606090bb294cecb7de3c4ed177f5aa0abd4c4e
https://git.kernel.org/stable/c/d88564c79d1cedaf2655f12261eca0d2796bde4e
https://git.kernel.org/stable/c/2feac1e562be0efc621a6722644a90f355d53473
https://git.kernel.org/stable/c/d62b14045c6511a7b2d4948d1a83a4e592deeb05

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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.