CVE-2017-8797
7.5
HIGH
CVSS 3.1
EPSS 8.7%
Description
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.
How to fix CVE-2017-8797
To remediate CVE-2017-8797, upgrade the affected package to a fixed version below.
- —upgrade to 4.9.30-1 or later
Is CVE-2017-8797 being exploited?
Moderate — EPSS is 8.7%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 4.9.30-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |