NULL pointer dereference in Linux kernel firmware efi driver

1) NULL pointer dereference

EUVDB-ID: #VU93056

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-2024-35800

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 generic_ops_supported() function in drivers/firmware/efi/efi.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/b9d103aca85f082a343b222493f3cab1219aaaf4
https://git.kernel.org/stable/c/9114ba9987506bcfbb454f6e68558d68cb1abbde
https://git.kernel.org/stable/c/7784135f134c13af17d9ffb39a57db8500bc60ff
https://git.kernel.org/stable/c/090d2b4515ade379cd592fbc8931344945978210
https://git.kernel.org/stable/c/62b71cd73d41ddac6b1760402bbe8c4932e23531

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.