NULL pointer dereference in Linux kernel brcm80211 brcmfmac driver

1) NULL pointer dereference

EUVDB-ID: #VU90524

Risk: Low

CVSSv3.1: 4.8 [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-2024-27048

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

External links

http://git.kernel.org/stable/c/df62e22c2e27420e8990a4f09e30d7bf56c2036f
http://git.kernel.org/stable/c/9975908315c13bae2f2ed5ba92870fa935180b0e
http://git.kernel.org/stable/c/6138a82f3bccfc67ed7ac059493579fc326c02e5
http://git.kernel.org/stable/c/b4152222e04cb8afeeca239c90e3fcaf4c553b42

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.