Skip to content
OpenAdvisories
Medium · 6.5 CVE-2019-0972 EUVD-2019-1707GHSA-9r4c-6g65-x8qw

Local Security Authority Subsystem Service Denial of Service Vulnerability

Published Jun 12, 2019 · Updated May 20, 2025 · Assigned by microsoft

Description

This security update corrects a denial of service in the Local Security Authority Subsystem Service (LSASS) caused when an authenticated attacker sends a specially crafted authentication request. A remote attacker who successfully exploited this vulnerability could cause a denial of service on the target system's LSASS service, which triggers an automatic reboot of the system.
The security update addresses the vulnerability by changing the way that LSASS handles specially crafted authentication requests.

Affected products

VendorProductAffectedFixed
Microsoft Windows 10 Version 1703 10.0.0 – < publication publication
Microsoft Windows 10 Version 1803 10.0.0 – < publication publication
Microsoft Windows Server, version 1803 (Server Core Installation) 10.0.0 – < publication publication
Microsoft Windows 10 Version 1809 10.0.17763.0 – < publication, 10.0.0 – < publication publication
Microsoft Windows Server 2019 10.0.17763.0 – < publication publication
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – < publication publication
Microsoft Windows 10 Version 1709 for 32-bit Systems 10.0.0 – < publication publication
Microsoft Windows 10 Version 1709 10.0.0 – < publication publication
Microsoft Windows 10 Version 1507 10.0.10240.0 – < publication publication
Microsoft Windows 10 Version 1607 10.0.14393.0 – < publication publication
Microsoft Windows Server 2016 10.0.14393.0 – < publication publication
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – < publication publication
Microsoft Windows 7 6.1.0 – < publication publication
Microsoft Windows 7 Service Pack 1 6.1.0 – < publication publication
Microsoft Windows 8.1 6.3.0 – < publication publication
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – < publication, 6.0.0 – < publication publication
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – < publication publication
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – < publication publication
Microsoft Windows Server 2008 R2 Systems Service Pack 1 6.1.0 – < publication publication
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – < publication publication
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – < publication publication
Microsoft Windows Server 2012 6.2.9200.0 – < publication publication
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – < publication publication
Microsoft Windows Server 2012 R2 6.3.9600.0 – < publication publication
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – < publication publication
Microsoft Windows 10 Version 1903 for 32-bit Systems 10.0.0 – < publication publication
Microsoft Windows 10 Version 1903 for x64-based Systems 10.0.0 – < publication publication
Microsoft Windows 10 Version 1903 for ARM64-based Systems 10.0.0 – < publication publication
Microsoft Windows Server, version 1903 (Server Core installation) 10.0.0 – < publication publication

References