5.5

CVE-2023-3866

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.
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Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 5.15 < 5.15.121
LinuxLinux Kernel Version >= 5.16 < 6.1.36
LinuxLinux Kernel Version >= 6.2 < 6.3.10
LinuxLinux Kernel Version6.4 Updaterc1
LinuxLinux Kernel Version6.4 Updaterc2
LinuxLinux Kernel Version6.4 Updaterc3
LinuxLinux Kernel Version6.4 Updaterc4
LinuxLinux Kernel Version6.4 Updaterc5
LinuxLinux Kernel Version6.4 Updaterc6
LinuxLinux Kernel Version6.4 Updaterc7
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.086
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.