Below are key resources documenting this recent monthly Microsoft Patch Tuesday release

https://isc.sans.edu/forums/diary/Microsoft+January+2018+Patch+Tuesday/23217/

http://blog.talosintelligence.com/2018/01/ms-tuesday.html

https://portal.msrc.microsoft.com/en-us/security-guidance/summary

Today Microsoft has released its monthly set of security advisories for vulnerabilities that have been identified and addressed in various products. This month’s advisory release addresses 56 new vulnerabilities with 16 of them rated critical, 39 of them rated important and 1 of them rated Moderate. These vulnerabilities impact ASP.NET, Edge, Internet Explorer, Office, Windows, and more.

In addition to the 56 vulnerabilities addressed, Microsoft has also released an update that addresses Meltdown and Spectre. Mitigations for these two vulnerabilities were published for Windows in ADV180002. Note that due to incompatibilities with anti-virus products, users and organizations may not have received this update yet. For more information, users should refer to Microsoft’s knowledge base article which covers this issue.