CVE-2023-52440
9.8
CRITICAL · CVSS 3.1 · EPSS 21.9% (pctl 98)
Patch early
EPSS 21.9% — above the 10% action threshold.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 21.91% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2024-02-21 |
| Last modified | 2026-08-15 |
Affected (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
References
- https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba
- https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254
- https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4
- https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809
- https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20
- https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba
- https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254
- https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4
- https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809
- https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20
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