CVE-2023-53676

Vulnerability overview

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 product and versions

Product

Linux Linux, linux kernel

Affected versions

>= e48354ce078c079996f89d715dfa44814b4eba01 < df349e84c2cb0dd05d98c8e1189c26ab4b116083, >= e48354ce078c079996f89d715dfa44814b4eba01 < 114b44dddea1f8f99576de3c0e6e9059012002fc, >= e48354ce078c079996f89d715dfa44814b4eba01 < 2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6, >= e48354ce078c079996f89d715dfa44814b4eba01 < bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a, >= e48354ce078c079996f89d715dfa44814b4eba01 < 5353df78c22623b42a71d51226d228a8413097e2, >= e48354ce078c079996f89d715dfa44814b4eba01 < 4738bf8b2d3635c2944b81b2a84d97b8c8b0978d, >= e48354ce078c079996f89d715dfa44814b4eba01 < 0cac6cbb9908309352a5d30c1876882771d3da50, >= e48354ce078c079996f89d715dfa44814b4eba01 < 801f287c93ff95582b0a2d2163f12870a2f076d4, >= 3.1, >= 3.1 < 4.14.326, >= 4.15 < 4.19.295, >= 4.20 < 5.4.257, >= 5.5 < 5.10.197, >= 5.11 < 5.15.133, >= 5.16 < 6.1.55, >= 6.2 < 6.5.5

Fixed versions

4.14.326, 4.19.295, 5.4.257, 5.10.197, 5.15.133, 6.1.55, 6.5.5

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-787