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CVE-2023-38431

An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes via pdu_size in ksmbd_conn_handler_loop leading to an out-of-bounds read.

CVSS score

9.1

EPSS probability

%1.2

Risk score

0.1

Published

3 y ago

Vulnerability Timeline (Change History)

CVE-2023-38431 historical changes made to the vulnerability by NVD, CISA and MITRE:

DateActor / SourceAction / DescriptionTypePrevious valueNew value
31.10.2026nvd@nist.govInitial Analysis & CVSS Vector AssignmentCVSS V3.1—CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
11.07.2023CISA CoordinatorSSVC Risk Re-assessmentSSVC / KEVexploitation: noneexploitation: none
11.07.2023MITRE / NVDNew CVE Record Received & IngestedCVE Created—CVE-2023-38431

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CVE-2023-38431 · An issue was discovered in the Linux kernel…