CVE-2023-53676

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

07/10/2025

Last modified:

03/02/2026

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&#39;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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.1 (including)	4.14.326 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.295 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.257 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.197 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.133 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.55 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.5.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-53676

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools