CVE-2025-38562

5.5 MEDIUM
Published: August 19, 2025 Modified: January 08, 2026

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://git.kernel.org/stable/c/015ef163d65496ae3ba6192c96140a22743f0353
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/96a82e19434a2522525baab59c33332658bc7653
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/9b493ab6f35178afd8d619800df9071992f715de
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://git.kernel.org/stable/c/d79c8bebaa622ee223128be7c66d8aaeeb634a57
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
https://www.zerodayinitiative.com/advisories/ZDI-25-917/
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Third Party Advisory Mailing List
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory Mailing List

8 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.5 / 10.0
EPSS (Exploit Probability)
0.0%
4th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

debian linux