CVE-2023-3866
5.5
MEDIUM
CVSS 3.1
EPSS 14.3%
Description
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.
How to fix CVE-2023-3866
To remediate CVE-2023-3866, upgrade the affected package to a fixed version below.
- —upgrade to 6.1.37-1 or later
Is CVE-2023-3866 being exploited?
Moderate — EPSS is 14.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 6.1.37-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |