Microsoft January 2019 Patch Tuesday

This month we got patches for 49 vulnerabilities total. None of them have been used in the wild, and only one vulnerability has been made public before today.

Particularly interesting is the vulnerability in the DHCP client. This could likely be exploited via a malicious DHCP server, for example in a public WiFi network. Microsoft assigned this vulnerability a CVSS base score of 9.8.

We got a good number of vulnerabilities in the Jet Database Engine. Jet Database vulnerabilities are often exploitable via Office documents. But none of the vulnerabilities are labeled as critical. Only 8 vulnerabilities are labeled as "Critical" this month. The majority of them affects web browsers. But there are also two critical code execution vulnerabilities in HyperV.

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)
.NET Framework Information Disclosure Vulnerability
CVE-2019-0545	No	No	Less Likely	Less Likely	Important
ASP.NET Core Denial of Service Vulnerability
CVE-2019-0548	No	No	Less Likely	Less Likely	Important
CVE-2019-0564	No	No	-	-	Important
Chakra Scripting Engine Memory Corruption Vulnerability
CVE-2019-0539	No	No	-	-	Critical	4.2	3.8
CVE-2019-0567	No	No	-	-	Critical	4.2	3.8
CVE-2019-0568	No	No	-	-	Critical	4.2	3.8
January 2019 Adobe Flash Update
ADV190001	No	No	-	-
Jet Database Engine Remote Code Execution Vulnerability
CVE-2019-0538	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0575	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0576	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0577	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0578	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0579	Yes	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0580	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0581	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0582	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0583	No	No	Unlikely	Unlikely	Important	7.8	7.0
CVE-2019-0584	No	No	Unlikely	Unlikely	Important	7.8	7.0
Latest Servicing Stack Updates
ADV990001	No	No	-	-	Critical
MSHTML Engine Remote Code Execution Vulnerability
CVE-2019-0541	No	No	More Likely	More Likely	Important	6.4	5.8
Microsoft Edge Elevation of Privilege Vulnerability
CVE-2019-0566	No	No	-	-	Important	4.3	3.9
Microsoft Edge Memory Corruption Vulnerability
CVE-2019-0565	No	No	-	-	Critical	4.2	3.8
Microsoft Exchange Information Disclosure Vulnerability
CVE-2019-0588	No	No	Less Likely	Less Likely	Important
Microsoft Exchange Memory Corruption Vulnerability
CVE-2019-0586	No	No	More Likely	More Likely	Important
Microsoft Office Information Disclosure Vulnerability
CVE-2019-0560	No	No	Less Likely	Less Likely	Important
Microsoft Office SharePoint XSS Vulnerability
CVE-2019-0556	No	No	-	-	Important
CVE-2019-0557	No	No	-	-	Important
CVE-2019-0558	No	No	Less Likely	Less Likely	Important
Microsoft Outlook Information Disclosure Vulnerability
CVE-2019-0559	No	No	Less Likely	Less Likely	Important
Microsoft SharePoint Elevation of Privilege Vulnerability
CVE-2019-0562	No	No	Less Likely	Less Likely	Important
Microsoft Visual Studio Information Disclosure Vulnerability
CVE-2019-0537	No	No	Less Likely	Less Likely	Important
Microsoft Windows Elevation of Privilege Vulnerability
CVE-2019-0543	No	No	More Likely	More Likely	Important	7.8	7.8
Microsoft Word Information Disclosure Vulnerability
CVE-2019-0561	No	No	Less Likely	Less Likely	Important
Microsoft Word Remote Code Execution Vulnerability
CVE-2019-0585	No	No	Less Likely	Less Likely	Important
Microsoft XmlDocument Elevation of Privilege Vulnerability
CVE-2019-0555	No	No	More Likely	More Likely	Important	7.0	6.3
Skype for Android Elevation of Privilege Vulnerability
CVE-2019-0622	No	No	Less Likely	Less Likely	Moderate
Visual Studio Remote Code Execution Vulnerability
CVE-2019-0546	No	No	Less Likely	Less Likely	Moderate
Windows COM Elevation of Privilege Vulnerability
CVE-2019-0552	No	No	More Likely	More Likely	Important	7.0	6.3
Windows DHCP Client Remote Code Execution Vulnerability
CVE-2019-0547	No	No	-	-	Critical	9.8	8.8
Windows Data Sharing Service Elevation of Privilege Vulnerability
CVE-2019-0571	No	No	Less Likely	Less Likely	Important	7.8	7.8
CVE-2019-0572	No	No	More Likely	More Likely	Important	7.8	7.8
CVE-2019-0573	No	No	More Likely	More Likely	Important	7.8	7.8
CVE-2019-0574	No	No	More Likely	More Likely	Important	7.8	7.8
Windows Hyper-V Remote Code Execution Vulnerability
CVE-2019-0550	No	No	Less Likely	Less Likely	Critical	7.6	6.8
CVE-2019-0551	No	No	Less Likely	Less Likely	Critical	7.6	6.8
Windows Kernel Information Disclosure Vulnerability
CVE-2019-0536	No	No	Less Likely	Less Likely	Important	4.7	4.2
CVE-2019-0549	No	No	Less Likely	Less Likely	Important	4.7	4.2
CVE-2019-0554	No	No	Less Likely	Less Likely	Important	4.7	4.2
CVE-2019-0569	No	No	More Likely	More Likely	Important	5.5	5.5
Windows Runtime Elevation of Privilege Vulnerability
CVE-2019-0570	No	No	Less Likely	Less Likely	Important	7.8	7.8
Windows Subsystem for Linux Information Disclosure Vulnerability
CVE-2019-0553	No	No	Less Likely	Less Likely	Important	4.7	4.2

---
Johannes B. Ullrich, Ph.D. , Dean of Research, SANS Technology Institute
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I will be teaching next: Defending Web Applications Security Essentials - SANS Silicon Valley - Cupertino 2020

Johannes

3841 Posts
ISC Handler

Whoops! Windows-7 users, listen up:

https://www.zdnet.com/article/microsofts-killer-windows-7-patch-breaks-networking-bricks-legit-not-genuine-pcs/
"Microsoft's killer Windows 7 patch: Breaks networking, flags legit PCs as 'Not genuine'"

Known issues in this update

After installing this update, some users are reporting the KMS Activation error, “Not Genuine”, 0xc004f200 on Windows 7 devices. We are aware of this incident and are presently investigating it. We will provide an update when available.

Local users who are part of the local “Administrators“ group may not be able to remotely access shares on Windows Server 2008 R2 and Windows 7 machines after installing the January 8th, 2019 security updates. This does not affect domain accounts in the local "Administrators" group.

Anonymous

Please see this detailed article at BleepingComputer, "Windows KB4480960 & KB4480970 Updates Causing Network and License Problems" —
https://www.bleepingcomputer.com/news/microsoft/windows-kb4480960-and-kb4480970-updates-causing-network-and-license-problems/ .

AJNorth

1 Posts

There are some workarounds now:

https://support.microsoft.com/en-us/help/4480960/windows-server-2008-kb4480960

https://support.microsoft.com/en-us/help/4480970/windows-7-update-kb4480970

https://support.microsoft.com/en-us/help/4487266/activation-failures-and-not-genuine-notifications-on-vl-win-7-kms-clie

https://support.microsoft.com/en-us/help/4487345/update-for-windows-7-sp1-and-windows-server-2008-r2

Anonymous