CVE-2023-4130

MEDIUM EPSS 12.9%
Published Aug 16, 202510mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 16, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥5.15  –  <5.15.127
linuxlinux_kernel*≥5.16  –  <6.1.46
linuxlinux_kernel*≥6.2  –  <6.4.11
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/4bf629262f9118ee91b1c3a518ebf2b3bcb22180
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f339d76a3a972601d0738b881b099d49ebbdc3a2
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4bf629262f9118ee91b1c3a518ebf2b3bcb22180
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f339d76a3a972601d0738b881b099d49ebbdc3a2
    Patch