Microsoft Released Security Updates & Fixed More than 70 Flaws Along with Active Zero-Day Browser Bug

Microsoft released new security updates for February under patch Tuesday with the fixes for more than 70 vulnerabilities that affected Microsoft products.

This is a second security update for this month and the first security advisory Microsoft releases on earlier of this month for the fixes of Privilege Escalation Vulnerability With Exchange Server.

Most of the vulnerabilities reported by various independent security researchers around the globe for the following Microsoft products.

• Internet Explorer
• Microsoft Edge
• Microsoft Windows
• Microsoft Office and Microsoft Office Services and Web Apps
• ChakraCore
• .NET Framework
• Microsoft Exchange Server
• Microsoft Visual Studio
• Azure IoT SDK
• Microsoft Dynamics
• Team Foundation Server
• Visual Studio Code

Microsoft fixed an active Internet Explorer zero-day vulnerability (CVE-2019-0676) in the security updates and the bug allow attackers to send open a malicious website link to exploit the browser flaw.

Also in another bug critical bug in Microsoft’s Exchange Server  (CVE-2019-0686) allows a remote attacker with a simple mailbox account to gain administrator privileges.

A Remote code execution vulnerability (CVE-2019-0640) that affected Microsoft Edge browser scripting engine handles also fixed in this security updates.

Edge Flaw allows an attacker who successfully exploited the vulnerability could gain the same user rights as the current user and if the current user logged in as admin then it could lead an attack to gain admin level access and take full control of the affected system.

There are 18 vulnerabilities are marked as critical severity and the vulnerabilities categories under Remote Code Execution and script engine Memory Corruption.

Critical Vulnerabilities list

Scripting Engine Memory Corruption Vulnerability	CVE-2019-0655	Critical
Microsoft Edge Memory Corruption Vulnerability	CVE-2019-0650	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0651	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0652	Critical
Microsoft Edge Memory Corruption Vulnerability	CVE-2019-0645	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0642	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0640	Critical
Windows DHCP Server Remote Code Execution Vulnerability	CVE-2019-0626	Critical
GDI+ Remote Code Execution Vulnerability	CVE-2019-0618	Critical
Microsoft SharePoint RCE Vulnerability	CVE-2019-0604	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0605	Critical
Internet Explorer Memory Corruption Vulnerability	CVE-2019-0606	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0607	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0590	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0591	Critical
Scripting Engine Memory Corruption Vulnerability	CVE-2019-0593	Critical
Microsoft SharePoint RCE Vulnerability	CVE-2019-0594	Critical

Another fix Microsoft released for Critical DHCP vulnerability (CVE-2019-0626) this month that could allow an attacker to send a specially crafted packet to a DHCP server

Also, Microsoft fixed all the office vulnerabilities that include 19 security updates and 28 non-security updates.