Microsoft April 2019 Patch Tuesday

This month we got patches for 74 vulnerabilities total. From those, 16 are critical and 2 have been exploited in the wild.

Both exploited vulnerabilities (CVE-2019-0859 and CVE-2019-0803) are related to Win32k component which fails to properly handle objects in memory and may permit a local attacker to elevate privileges and execute arbitrary code in kernel mode.

It is also worth mentioning a remote code execution vulnerability in GDI+ (Windows Graphics Device Interface) which affects the EMF (Enhanced MetaFile) parser. An attacker could exploit this vulnerability by convincing users to open specially crafted EML files in scenarios such as a file hosted on a web server or an e-mail attachment. Multiple Microsoft programs, especially Office suite, uses GDI+ component.

We got 5 vulnerabilities in the Jet Database Engine. Jet Database vulnerabilities are often exploitable via Office documents. But none of the vulnerabilities are labeled as critical.

See Renato's dashboard for a more detailed breakout: https://patchtuesdaydashboard.com

Description
CVE	Disclosed	Exploited	Exploitability (old versions)	current version	Severity	CVSS Base (AVG)	CVSS Temporal (AVG)
ASP.NET Core Denial of Service Vulnerability
CVE-2019-0815	No	No	Less Likely	Less Likely	Important
April 2019 Adobe Flash Security Update
ADV190011	No	No	-	-	Critical
Azure DevOps Server Elevation of Privilege Vulnerability
CVE-2019-0875	No	No	Less Likely	Less Likely	Important
Chakra Scripting Engine Memory Corruption Vulnerability
CVE-2019-0812	No	No	-	-	Critical	4.2	3.8
CVE-2019-0829	No	No	-	-	Critical	4.2	3.8
CVE-2019-0806	No	No	-	-	Critical	4.2	3.8
CVE-2019-0810	No	No	-	-	Critical	4.2	3.8
CVE-2019-0860	No	No	-	-	Critical	4.2	3.8
CVE-2019-0861	No	No	-	-	Critical	4.2	3.8
DirectX Information Disclosure Vulnerability
CVE-2019-0837	No	No	Less Likely	Less Likely	Important	5.5	5.0
GDI+ Remote Code Execution Vulnerability
CVE-2019-0853	No	No	Less Likely	Less Likely	Critical	7.8	7.8
Jet Database Engine Remote Code Execution Vulnerability
CVE-2019-0846	No	No	Less Likely	Less Likely	Important	7.8	7.0
CVE-2019-0847	No	No	Less Likely	Less Likely	Important	7.8	7.0
CVE-2019-0851	No	No	Less Likely	Less Likely	Important	7.8	7.0
CVE-2019-0877	No	No	Less Likely	Less Likely	Important	7.8	7.0
CVE-2019-0879	No	No	Less Likely	Less Likely	Important	7.8	7.0
Latest Servicing Stack Updates
ADV990001	No	No	-	-	Critical
MS XML Remote Code Execution Vulnerability
CVE-2019-0790	No	No	Less Likely	Less Likely	Critical	7.8	7.0
CVE-2019-0791	No	No	Less Likely	Less Likely	Critical	7.8	7.0
CVE-2019-0792	No	No	Less Likely	Less Likely	Critical	7.8	7.0
CVE-2019-0793	No	No	More Likely	More Likely	Critical	7.8	7.0
CVE-2019-0795	No	No	Less Likely	Less Likely	Critical	7.8	7.0
Microsoft Browsers Tampering Vulnerability
CVE-2019-0764	No	No	Less Likely	Less Likely	Important	2.4	2.2
Microsoft Edge Information Disclosure Vulnerability
CVE-2019-0833	No	No	-	-	Important	4.3	3.9
Microsoft Excel Remote Code Execution Vulnerability
CVE-2019-0828	No	No	Less Likely	Less Likely	Important
Microsoft Exchange Spoofing Vulnerability
CVE-2019-0858	No	No	Less Likely	Less Likely	Important
CVE-2019-0817	No	No	Less Likely	Less Likely	Important
Microsoft Graphics Components Remote Code Execution Vulnerability
CVE-2019-0822	No	No	More Likely	More Likely	Important
Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability
CVE-2019-0823	No	No	-	-	Important
CVE-2019-0824	No	No	Less Likely	Less Likely	Important
CVE-2019-0825	No	No	Less Likely	Less Likely	Important
CVE-2019-0826	No	No	Less Likely	Less Likely	Important
CVE-2019-0827	No	No	Less Likely	Less Likely	Important
Microsoft Office SharePoint XSS Vulnerability
CVE-2019-0830	No	No	Less Likely	Less Likely	Important
CVE-2019-0831	No	No	Less Likely	Less Likely	Important
Microsoft Scripting Engine Information Disclosure Vulnerability
CVE-2019-0835	No	No	Less Likely	Less Likely	Important	4.3	3.9
OLE Automation Remote Code Execution Vulnerability
CVE-2019-0794	No	No	More Likely	More Likely	Important	7.8	7.0
Office Remote Code Execution Vulnerability
CVE-2019-0801	No	No	More Likely	More Likely	Important
Open Enclave SDK Information Disclosure Vulnerability
CVE-2019-0876	No	No	-	-	Important
SMB Server Elevation of Privilege Vulnerability
CVE-2019-0786	No	No	Less Likely	Less Likely	Critical	7.8	7.0
Scripting Engine Memory Corruption Vulnerability
CVE-2019-0739	No	No	-	-	Critical	4.2	3.8
CVE-2019-0752	No	No	More Likely	More Likely	Important	6.4	5.8
CVE-2019-0753	No	No	More Likely	More Likely	Critical	6.4	5.8
CVE-2019-0862	No	No	More Likely	More Likely	Important
Team Foundation Server Cross-site Scripting Vulnerability
CVE-2019-0866	No	No	Less Likely	Less Likely	Important
CVE-2019-0867	No	No	Less Likely	Less Likely	Important
CVE-2019-0868	No	No	Less Likely	Less Likely	Important
CVE-2019-0870	No	No	Less Likely	Less Likely	Important
CVE-2019-0871	No	No	Less Likely	Less Likely	Important
CVE-2019-0874	No	No	-	-	Important
Team Foundation Server HTML Injection Vulnerability
CVE-2019-0869	No	No	Less Likely	Less Likely	Important
Team Foundation Server Spoofing Vulnerability
CVE-2019-0857	No	No	-	-	Important
Win32k Elevation of Privilege Vulnerability
CVE-2019-0803	No	Yes	Detected	More Likely	Important	7.0	6.3
CVE-2019-0685	No	No	More Likely	More Likely	Important	7.8	7.0
CVE-2019-0859	No	Yes	Detected	More Likely	Important	7.8	7.0
Win32k Information Disclosure Vulnerability
CVE-2019-0848	No	No	Less Likely	Less Likely	Important	4.7	4.2
CVE-2019-0814	No	No	More Likely	More Likely	Important	4.7	4.2
Windows Admin Center Elevation of Privilege Vulnerability
CVE-2019-0813	No	No	-	-	Important
Windows CSRSS Elevation of Privilege Vulnerability
CVE-2019-0735	No	No	More Likely	More Likely	Important	7.0	6.3
Windows Elevation of Privilege Vulnerability
CVE-2019-0805	No	No	More Likely	More Likely	Important	6.7	6.0
CVE-2019-0841	No	No	Less Likely	Less Likely	Important	6.8	6.1
CVE-2019-0730	No	No	More Likely	More Likely	Important	6.7	6.0
CVE-2019-0731	No	No	More Likely	More Likely	Important	6.8	6.1
CVE-2019-0796	No	No	More Likely	More Likely	Important	6.3	5.7
CVE-2019-0836	No	No	More Likely	More Likely	Important	7.0	6.3
Windows GDI Information Disclosure Vulnerability
CVE-2019-0802	No	No	Less Likely	Less Likely	Important	4.7	4.2
CVE-2019-0849	No	No	Less Likely	Less Likely	Important	4.7	4.2
Windows IOleCvt Interface Remote Code Execution Vulnerability
CVE-2019-0845	No	No	Less Likely	Less Likely	Critical	7.5	6.7
Windows Information Disclosure Vulnerability
CVE-2019-0838	No	No	Less Likely	Less Likely	Important	6.6	5.9
CVE-2019-0839	No	No	Less Likely	Less Likely	Important	4.4	4.0
Windows Kernel Information Disclosure Vulnerability
CVE-2019-0840	No	No	More Likely	More Likely	Important	5.5	5.0
CVE-2019-0844	No	No	More Likely	More Likely	Important	5.5	5.0
Windows Remote Code Execution Vulnerability
CVE-2019-0856	No	No	Less Likely	Less Likely	Important	7.3	6.6
Windows Security Feature Bypass Vulnerability
CVE-2019-0732	No	No	More Likely	More Likely	Important	5.3	4.8
Windows TCP/IP Information Disclosure Vulnerability
CVE-2019-0688	No	No	Less Likely	Less Likely	Important	5.3	4.9
Windows VBScript Engine Remote Code Execution Vulnerability
CVE-2019-0842	No	No	Less Likely	Less Likely	Important	6.4	5.8

--
Renato Marinho
Morphus Labs| LinkedIn|Twitter

Renato

84 Posts
ISC Handler

Apr 9th 2019

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Apr 9th 2019
3 years ago