CVE-2023-38428

CRITICAL EPSS 85.6%
Published Jul 18, 20232y ago · Modified Jun 17, 20262w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Jul 18, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

Description

An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/smb2pdu.c in ksmbd does not properly check the UserName value because it does not consider the address of security buffer, leading to an out-of-bounds read.

CVSS Details

Base Score
9.1
Exploitability
3.9
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
85.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥5.15  –  <5.15.113
linuxlinux_kernel*≥5.16  –  <6.1.30
linuxlinux_kernel*≥6.2  –  <6.3.4
netappsolidfire_\&_hci_management_node*any
netappsolidfire_\&_hci_storage_node*any
netapph300s*any
netapph410s*any
netapph500s*any
netapph700s*any

References 3

  • cdn.kernel.org https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
    Release Notes
  • git.kernel.org https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/ksmbd?id=f0a96d1aafd8964e1f9955c830a3e5cb3c60a90f
    Patch
  • security.netapp.com https://security.netapp.com/advisory/ntap-20230831-0001/
    Third Party AdvisoryVDB Entry

Remediation

  • git.kernel.org https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/ksmbd?id=f0a96d1aafd8964e1f9955c830a3e5cb3c60a90f
    Patch