#VU91501 NULL pointer dereference in Linux kernel - CVE-2024-27051

Vulnerability identifier: #VU91501

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-2024-27051

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 brcm_avs_is_firmware_loaded() function in drivers/cpufreq/brcmstb-avs-cpufreq.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
https://git.kernel.org/stable/c/9127599c075caff234359950117018a010dd01db
https://git.kernel.org/stable/c/d951cf510fb0df91d3abac0121a59ebbc63c0567
https://git.kernel.org/stable/c/e72160cb6e23b78b41999d6885a34ce8db536095
https://git.kernel.org/stable/c/b25b64a241d769e932a022e5c780cf135ef56035
https://git.kernel.org/stable/c/74b84d0d71180330efe67c82f973a87f828323e5
https://git.kernel.org/stable/c/e6e3e51ffba0784782b1a076d7441605697ea3c6
https://git.kernel.org/stable/c/f661017e6d326ee187db24194cabb013d81bc2a6

---

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.