Tracker / CVE-2023-4130
CVE-2023-4130
High 8.1
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.15 → 5.15.127 |
| linux | linux_kernel · 5.16 → 6.1.46 |
| linux | linux_kernel · 6.2 → 6.4.11 |
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.