#VU104601 NULL pointer dereference in Linux kernel - CVE-2022-49544

Vulnerability identifier: #VU104601

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-2022-49544

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 libipw_xmit() function in drivers/net/wireless/intel/ipw2x00/libipw_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
https://git.kernel.org/stable/c/167affc11781d7d35c4c3a7630a549ac74dd0b21
https://git.kernel.org/stable/c/1ff6b0727c8988f25eeb670b6c038c1120bb58dd
https://git.kernel.org/stable/c/48d4a820fd33f012e5f63735a59d15b5a3882882
https://git.kernel.org/stable/c/528d2023ccf4748fd542582955236c1634a7d293
https://git.kernel.org/stable/c/5f7ea274e88c0eeffe6bd6dbf6cf5c479d356af6
https://git.kernel.org/stable/c/8fb1b9beb085bb767ae43e441db5ac6fcd66a04d
https://git.kernel.org/stable/c/98d1dc32f890642476dbb78ed3437a456bf421b0
https://git.kernel.org/stable/c/b4628e0d3754ab2fc98ee6e3d21851ba45798077
https://git.kernel.org/stable/c/e8366bbabe1d207cf7c5b11ae50e223ae6fc278b

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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.