NULL pointer dereference in Linux kernel bluetooth

1) NULL pointer dereference

EUVDB-ID: #VU92062

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-2024-36011

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 hci_le_big_sync_established_evt() function in net/bluetooth/hci_event.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/1f7ebb69c1d65732bcac2fda9d15421f76f01e81
https://git.kernel.org/stable/c/9f3be61f55d4eedc20eedc56c0f04a5ce2b4a55a
https://git.kernel.org/stable/c/d2706004a1b8b526592e823d7e52551b518a7941

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.