Unrated severityNVD Advisory· Published Feb 21, 2024· Updated May 4, 2025
ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()
CVE-2023-52440
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.
Affected products
2Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fbamitre
- git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254mitre
- git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4mitre
- git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809mitre
- git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20mitre
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