An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit an untrusted webpage. The security update addresses the vulnerability by correcting how the Windows GDI component handles objects in memory.
Microsoft Graphics Device Interface Buffer Overflow (CVE-2019-1439)
Microsoft Windows GDI CVE-2019-1439 Information Disclosure Vulnerability
KB4525233: Windows 7 and Windows Server 2008 R2 November 2019 Security Update
KB4525250: Windows 8.1 and Windows Server 2012 R2 November 2019 Security Update
KB4525236: Windows 10 Version 1607 and Windows Server 2016 November 2019 Security Update
KB4523205: Windows 10 Version 1809 and Windows Server 2019 November 2019 Security Update
KB4524570: Windows 10 Version 1903 and Windows 10 Version 1909 November 2019 Security Update