NULL pointer dereference in Linux kernel brcm80211 brcmfmac driver

1) NULL pointer dereference

EUVDB-ID: #VU97175

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-46672

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 brcmf_pmksa_v3_op() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.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

External links

http://git.kernel.org/stable/c/4291f94f8c6b01505132c22ee27b59ed27c3584f
http://git.kernel.org/stable/c/1f566eb912d192c83475a919331aea59619e1197
http://git.kernel.org/stable/c/2ad4e1ada8eebafa2d75a4b75eeeca882de6ada1

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.