cve/2023/CVE-2023-38431.md

CVE-2023-38431

Description

An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes, via pdu_size in ksmbd_conn_handler_loop, leading to an out-of-bounds read.

POC

Reference

• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.8

Github

• https://github.com/chenghungpan/test_data
• https://github.com/fkie-cad/nvd-json-data-feeds