#VU106190 NULL pointer dereference in Linux kernel - CVE-2023-52984

Vulnerability identifier: #VU106190

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-2023-52984

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 dp83822_config_intr() function in drivers/net/phy/dp83822.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.1, 6.1 rc1, 6.1 rc3, 6.1 rc7, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.1.5, 6.1.6, 6.1.7, 6.1.8, 6.1.9, 6.1.10

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External links
https://git.kernel.org/stable/c/2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa
https://git.kernel.org/stable/c/362a2f5531dc0e5b0b5b3e3a541000dbffa75461
https://git.kernel.org/stable/c/422ae7d9c7221e8d4c8526d0f54106307d69d2dc
https://git.kernel.org/stable/c/78901b10522cdf6badf24acf65a892637596bccc
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.11

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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.