CVE-2023-38429

CRITICAL EPSS 60.8%
Published Jul 18, 20232y ago · Modified Jun 17, 20262w ago
9.8 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/connection.c in ksmbd has an off-by-one error in memory allocation (because of ksmbd_smb2_check_message) that may lead to out-of-bounds access.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
60.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-193

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.15  –  <5.15.113
linuxlinux_kernel*≥5.16  –  <6.1.30
linuxlinux_kernel*≥6.2  –  <6.3.4

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=443d61d1fa9faa60ef925513d83742902390100f
    Patch
  • security.netapp.com https://security.netapp.com/advisory/ntap-20250103-0009/

Remediation

  • git.kernel.org https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/ksmbd?id=443d61d1fa9faa60ef925513d83742902390100f
    Patch