CVE-2023-53676: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 3.1, before 4.14.326 (fixed in 4.14.326); from 4.15, before 4.19.295 (fixed in 4.19.295); from 4.20, before 5.4.257 (fixed in 5.4.257); from 5.5, before 5.10.197 (fixed in 5.10.197); from 5.11, before 5.15.133 (fixed in 5.15.133); from 5.16, before 6.1.55 (fixed in 6.1.55); …

Published 2025-10-07. Last modified 2026-08-04.