imPC@ndo IT

Tracker / CVE-2023-38431

CVE-2023-38431

Critical 9.1

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.

Affected products and versions

linux linux_kernel · 5.15 → 5.15.145
linux linux_kernel · 5.16 → 6.1.34
linux linux_kernel · 6.2 → 6.3.8
netapp h300s
netapp h410s
netapp h500s
netapp h700s
netapp solidfire_\&_hci_management_node

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References