CVE-2023-53676

HIGH EPSS 5.1%
Published Oct 7, 20258mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory. This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
5.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥3.1  –  <4.14.326
linuxlinux_kernel*≥4.15  –  <4.19.295
linuxlinux_kernel*≥4.20  –  <5.4.257
linuxlinux_kernel*≥5.5  –  <5.10.197
linuxlinux_kernel*≥5.11  –  <5.15.133
linuxlinux_kernel*≥5.16  –  <6.1.55
linuxlinux_kernel*≥6.2  –  <6.5.5

References 8

  • git.kernel.org https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083
    Patch