The update for the Fairphone Open 17.10.2 is also released. https://forum.fairphone.com/t/fairphone-open-17-10-2-release-fixes-for-the-krack-vulnerabilities/34495/7
The link to Fairphone OS 17.10.2 is https://forum.fairphone.com/t/fairphone-os-17-10-2-fixes-for-the-krack-vulnerabilities/34455/14