5.5

CVE-2023-3866

ksmbd: validate session id and tree id in the compound request

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: validate session id and tree id in the compound request

This patch validate session id and tree id in compound request.
If first operation in the compound is SMB2 ECHO request, ksmbd bypass
session and tree validation. So work->sess and work->tcon could be NULL.
If secound request in the compound access work->sess or tcon, It cause
NULL pointer dereferecing error.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.15 < 5.15.121
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.36
Linux ≫ Linux Kernel Version >= 6.2 < 6.3.10
Linux ≫ Linux Kernel Version6.4 Updaterc1
Linux ≫ Linux Kernel Version6.4 Updaterc2
Linux ≫ Linux Kernel Version6.4 Updaterc3
Linux ≫ Linux Kernel Version6.4 Updaterc4
Linux ≫ Linux Kernel Version6.4 Updaterc5
Linux ≫ Linux Kernel Version6.4 Updaterc6
Linux ≫ Linux Kernel Version6.4 Updaterc7
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 14.33% 0.962
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/eb947403518ea3d93f6d89264bb1f5416bb0c7d0
Patch
https://git.kernel.org/stable/c/854156d12caa9d36de1cf5f084591c7686cc8a9d
Patch
https://git.kernel.org/stable/c/d1066c1b3663401cd23c0d6e60cdae750ce00c0f
Patch
https://git.kernel.org/stable/c/5005bcb4219156f1bf7587b185080ec1da08518e
Patch