#VU97516 NULL pointer dereference in Linux kernel - CVE-2024-46795

Vulnerability identifier: #VU97516

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-2024-46795

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 smb2_sess_setup() function in fs/ksmbd/smb2pdu.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/9914f1bd61d5e838bb1ab15a71076d37a6db65d1
https://git.kernel.org/stable/c/93d54a4b59c4b3d803d20aa645ab5ca71f3b3b02
https://git.kernel.org/stable/c/41bc256da7e47b679df87c7fc7a5b393052b9cce
https://git.kernel.org/stable/c/4c8496f44f5bb5c06cdef5eb130ab259643392a1
https://git.kernel.org/stable/c/78c5a6f1f630172b19af4912e755e1da93ef0ab5

---

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.