CVE-2023-4130

CVE-2023-4130

High · published August 16, 2025

CVSS v3.1
8.1
EPSS
1%
Percentile
42.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00510 · 42.7th percentile
Published
2025-08-16T18:15Z
Affected products (8)
ProductVersionsFixed in
linux/linux_kernel≥ 5.15, < 5.15.1275.15.127
linux/linux_kernel≥ 5.16, < 6.1.466.1.46
linux/linux_kernel≥ 6.2, < 6.4.116.4.11
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (4)
https://git.kernel.org/stable/c/4bf629262f9118ee91b1c3a518ebf2b3bcb22180 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f339d76a3a972601d0738b881b099d49ebbdc3a2 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 16 AUG 13:27Z
    ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
    cvelistv5