CVE-2025-38562

Sažetak

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.

Reference

https://git.kernel.org/stable/c/015ef163d65496ae3ba6192c96140a22743f0353
https://git.kernel.org/stable/c/2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e
https://git.kernel.org/stable/c/96a82e19434a2522525baab59c33332658bc7653
https://git.kernel.org/stable/c/9b493ab6f35178afd8d619800df9071992f715de
https://git.kernel.org/stable/c/9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb
https://git.kernel.org/stable/c/d79c8bebaa622ee223128be7c66d8aaeeb634a57
https://www.zerodayinitiative.com/advisories/ZDI-25-917/
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

CVSS

Base:	5.5
Impact:	3.6
Exploitability:	1.8

Pristup

Vektor	Složenost	Autentikacija
LOCAL	LOW	LOW

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	NONE	HIGH

CVSS vektor

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Zadnje važnije ažuriranje

08-01-2026 - 20:51

Objavljeno

19-08-2025 - 17:15