Description
A denial of service exists in Microsoft IIS Server when the optional request filtering feature improperly handles requests. An attacker who successfully exploited this vulnerability could perform a temporary denial of service against pages configured to use request filtering. To exploit this vulnerability, an attacker could send a specially crafted request to a page utilizing request filtering. The update addresses the vulnerability by changing the way certain requests are processed by the filter.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Microsoft Windows 10 Version 1903 for 32-bit Systems
10.0.0 to < publicationaffected
Microsoft Windows 10 Version 1803
10.0.0 to < publicationaffected
Microsoft Windows Server, version 1903 (Server Core installation)
10.0.0 to < publicationaffected
Microsoft Windows 7 Service Pack 1
6.1.0 to < publicationaffected
Microsoft Windows Server 2008 R2 Service Pack 1
6.1.7601.0 to < publicationaffected
Microsoft Windows 10 Version 1903 for x64-based Systems
10.0.0 to < publicationaffected
Microsoft Windows 10 Version 1809
10.0.0 to < publicationaffected
Microsoft Windows Server 2019
10.0.17763.0 to < publicationaffected
Microsoft Windows 8.1
6.3.0 to < publicationaffected
Microsoft Windows Server 2012 (Server Core installation)
6.2.9200.0 to < publicationaffected
Microsoft Windows 10 Version 1903 for ARM64-based Systems
10.0.0 to < publicationaffected
Microsoft Windows 10 Version 1507
10.0.10240.0 to < publicationaffected
Microsoft Windows 10 Version 1709
10.0.0 to < publicationaffected
Microsoft Windows 10 Version 1703
10.0.0 to < publicationaffected
Microsoft Windows 10 Version 1809
10.0.17763.0 to < publicationaffected
Microsoft Windows Server, version 1803 (Server Core Installation)
10.0.0 to < publicationaffected
Microsoft Windows Server 2019 (Server Core installation)
10.0.17763.0 to < publicationaffected
Microsoft Windows Server 2016 (Server Core installation)
10.0.14393.0 to < publicationaffected
Microsoft Windows 10 Version 1607
10.0.14393.0 to < publicationaffected
Microsoft Windows 7
6.1.0 to < publicationaffected
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
6.0.6003.0 to < publicationaffected
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
6.1.7601.0 to < publicationaffected
Microsoft Windows Server 2012 R2
6.3.9600.0 to < publicationaffected
Microsoft Windows 10 Version 1709 for 32-bit Systems
10.0.0 to < publicationaffected
Microsoft Windows Server 2012
6.2.9200.0 to < publicationaffected
Microsoft Windows Server 2008 Service Pack 2
6.0.6003.0 to < publicationaffected
Microsoft Windows Server 2012 R2 (Server Core installation)
6.3.9600.0 to < publicationaffected
Microsoft Windows Server 2016
10.0.14393.0 to < publicationaffected
Microsoft Windows Server 2008 R2 Systems Service Pack 1
6.1.0 to < publicationaffected
Microsoft Windows Server 2008 Service Pack 2
6.0.6003.0 to < publicationaffected
Microsoft Windows Server 2008 Service Pack 2
6.0.0 to < publicationaffected