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VERT Threat Alert: December 2019 Patch Tuesday Analysis

Today’s VERT Alert addresses Microsoft’s December 2019 Security Updates. VERT is actively working on coverage for these vulnerabilities and expects to ship ASPL-863 on Wednesday, December 11th. 

In-The-Wild & Disclosed CVEs

CVE-2019-1458

A vulnerability in Win32k is currently seeing active exploitation that could give an attacker the ability to run arbitrary code in kernel mode. Microsoft has addressed this vulnerability by correcting how Win32k handles objects in memory. The latest software releases are not impacted by this vulnerability.

Christopher Krebs, former director of the U.S. Cybersecurity and Infrastructure Security Agency talk about the very real security threat disinformation can cause. Live at DevOps Connect 2021 on May 19.

Microsoft has rated this as a 4 (N/A) on the latest software release and 0 (Exploitation Detected) on older software releases on the Exploitability Index.

CVE-2019-1489

Microsoft has released a notification regarding RDP on Windows XP SP3. This is end of life software without an available update and Microsoft has indicated they have no plans to release one. There is no indication that this vulnerability has been publicly disclosed or exploited based on the exploitability index, but Microsoft has indicated that an attacker could use this vulnerability to obtain information that could be used to further compromise the user’s system.

Microsoft has rated this as a 0 (Unknown) on both the latest and older software releases on the Exploitability Index.

CVE Breakdown by Tag

While historical Microsoft Security Bulletin groupings are gone, Microsoft vulnerabilities are tagged with an identifier. This list provides a breakdown of the CVEs on a per tag basis.