CVEvulnerability

CVE-2023-4130

5.5 MEDIUM Published 2025-08-16 Modified 2026-08-15 Official page ↗
Status
Modified
Published
2025-08-16
Last modified
2026-08-15
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.

Affected configurations

• linux linux kernel (>= 5.15 < 5.15.127) • linux linux kernel (>= 5.16 < 6.1.46) • linux linux kernel (>= 6.2 < 6.4.11) • linux linux kernel 6.5

References