Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.17.0, < 6.1.52 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fbaPatch
- https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254Patch
- https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4Patch
- https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809Patch
- https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20Patch
- https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fbaPatch
- https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254Patch
- https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4Patch
- https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809Patch
- https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20Patch
FAQ
What is CVE-2023-52440?
CVE-2023-52440 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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_K...
How severe is CVE-2023-52440?
CVE-2023-52440 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2023-52440?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.