NULL pointer dereference in Linux kernel ath ath11k driver

1) NULL pointer dereference

EUVDB-ID: #VU104596

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-2022-49523

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 ath11k_spectral_scan_config(), ath11k_spectral_ring_free() and ath11k_spectral_deinit() functions in drivers/net/wireless/ath/ath11k/spectral.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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/161c64de239c7018e0295e7e0520a19f00aa32dc
https://git.kernel.org/stable/c/451b9076903a057b7b8d5b24dc84b3e436a1c743
https://git.kernel.org/stable/c/4b9c54caef58d2b55074710952cda70540722c01
https://git.kernel.org/stable/c/60afa4f4e1350c876d8a061182a70c224de275dd
https://git.kernel.org/stable/c/8f15e67af9bec5a69e815e0230a70cffddae371a

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.