Tracker / CVE-2017-8797
CVE-2017-8797
High 7.5
The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system.
Affected products and versions
| linux | linux_kernel · 4.0 → 4.1.40 |
|---|---|
| linux | linux_kernel · 4.11 → 4.11.3 |
| linux | linux_kernel · 4.2 → 4.4.70 |
| linux | linux_kernel · 4.5 → 4.9.30 |
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.