Vulnerabilities CVE-2023-52440

CVE-2023-52440

Critical

Open

TLP:CLEAR

ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()

NVD CVE.org

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Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client.

Details

CVSS Score: 9.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Feb 21, 2024
Last Modified: Aug 15, 2026

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