Trustwave Rapid Response: CrowdStrike Falcon Outage Update. Learn More

Trustwave Rapid Response: CrowdStrike Falcon Outage Update. Learn More

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SpiderLabs Blog

Microsoft Patch Tuesday, January 2018

Happy 2018 everyone! January's Patch Tuesday will ease you into the new year with just 23 CVEs patched. Historically January has always been a light patch month. The release patches one CVE each that's rated "Critical", "Moderate" and "Low". The remianing 20 CVEs are rated "Important". This release also includes "Critical" rated patches for for Adobe Flash and an unrated "Defense in Depth" update for Microsoft Office. The majority of these patches affect the Office suite including some serious remote code execution vulnerabilities. .NET is also affected by multiple vulnerabilities, so .NET admins will want to make sure they are up to date.

Of course a light January Patch Tuesday doesn't mean that systems administrators are getting off easy. Unfortunately Meltdown and Spectre will likely keep IT staff in overdrive for the foreseeable future. Microsoft released an out of band advisory covering their response to these vulnerabilities here:

If you are unsure what Meltdown and Spectre are or how they might affect you, we have also put together an overview of these vulnerabilities here:



January 2018 Adobe Flash Security Update
Remote Code Execution

Microsoft Word Memory Corruption Vulnerability
Remote Code Execution



.NET and .NET Core Denial Of Service Vulnerability
Denial of Service

.NET Security Feature Bypass Vulnerability
Security Feature Bypass

ASP.NET Core Elevation Of Privilege Vulnerability
Elevation of Privilege

Microsoft Access Tampering Vulnerability

Microsoft Edge Elevation of Privilege Vulnerability
Security Feature Bypass

Microsoft Excel Remote Code Execution
Remote Code Execution

Microsoft Office Information Disclosure Vulnerability
Information Disclosure

Microsoft Office Remote Code Execution Vulnerability
CVE-2018-0802, CVE-2018-0795, CVE-2018-0801
Remote Code Execution

Microsoft Office Spoofing Vulnerability

Microsoft Outlook Remote Code Execution
CVE-2018-0791, CVE-2018-0793
Remote Code Execution

Microsoft Word Remote Code Execution
CVE-2018-0798, CVE-2018-0812, CVE-2018-0792, CVE-2018-0794, CVE-2018-0805, CVE-2018-0806, CVE-2018-0807
Remote Code Execution



ASP.NET Core Cross Site Request Forgery Vulnerability



Microsoft Word Remote Code Execution
Remote Code Execution


No Risk Rating

Microsoft Office Defense in Depth Update


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