Windows Kernel stack memory disclosure in win32k!NtGdiGetTextMetricsW(CVE-2017-8472)

We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7 other systems untested through the win32k!NtGdiGetTextMetricsW system call. The output structure used by the syscall, according to various sources, is TMWINTERNA...

Windows Kernel stack memory disclosure in nt!NtQueryInformationResourceManager(CVE-2017-8481)

We have discovered that the nt!NtQueryInformationResourceManager system call called with the 0 information class discloses portions of uninitialized kernel stack memory to user-mode clients, on Windows 7 to Windows 10. The specific name of the 0 information class or the layout of the correspondin...

Windows Kernel stack memory disclosure in nt!NtQueryInformationJobObject

We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented QueryInformationJobObject API function called with the JobObjectExtendedLimitInformation information class discloses portions of uninitialized kernel stack memory to user-mode clients, due to...

Windows Kernel stack memory disclosure in nt!NtQueryInformationJobObject(CVE-2017-8479)

We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented QueryInformationJobObject API function called with the 28 information class discloses portions of uninitialized kernel stack memory to user-mode clients. The specific name of the 28 information...

Microsoft Windows - 'nt!NtQueryInformationWorkerFactory (WorkerFactoryBasicInformation)' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1214&desc=2 We have discovered that the nt!NtQueryInformationWorkerFactory system call called with the WorkerFactoryBasicInformation 7 information class discloses portions of uninitialized kernel stack memory to user-mode clients...

Microsoft Windows - 'win32k!NtGdiMakeFontDir' Kernel Stack Memory Disclosure

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1191 We have discovered that the win32k!NtGdiMakeFontDir system call discloses large portions of uninitialized kernel stack memory to user-mode clients. The attached proof of concept code which is specific to Windows 7 32-bit works...

Microsoft Windows - win32k!NtGdiMakeFontDir Kernel Stack Memory Disclosure

Microsoft Windows - win32k!NtGdiMakeFontDir Kernel Stack Memory Disclosure Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1191 We have discovered that the win32k!NtGdiMakeFontDir system call discloses large portions of uninitialized kernel stack memory to user-mode clients. The...

Microsoft Windows - win32k!NtGdiGetOutlineTextMetricsInternalW Kernel Stack Memory Disclosure

Microsoft Windows - win32k!NtGdiGetOutlineTextMetricsInternalW Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1179 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in...

Microsoft Windows - nt!NtQueryInformationTransaction (information class 1) Kernel Stack Memory Discl

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1196 We have discovered that the nt!NtQueryInformationTransaction system call called with the 1 information class discloses portions of uninitialized kernel stack memory to...

Microsoft Windows - win32k!NtGdiGetRealizationInfo Kernel Stack Memory Disclosure

Microsoft Windows - win32k!NtGdiGetRealizationInfo Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1181 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7-10...

Microsoft Windows - 'win32k!NtGdiGetTextMetricsW' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1180 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7 other systems untested through the win32k!NtGdiGetTextMetricsW system call. The output...

Microsoft Windows - win32k!NtGdiGetTextMetricsW Kernel Stack Memory Disclosure

Microsoft Windows - win32k!NtGdiGetTextMetricsW Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1180 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7 other...

Microsoft Windows - nt!NtQueryInformationJobObject (information class 28) Kernel Stack Memory Disclosure

Microsoft Windows - nt!NtQueryInformationJobObject information class 28 Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1194 We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented...

Microsoft Windows - 'win32k!NtGdiGetOutlineTextMetricsInternalW' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1179 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7-10 through the win32k!NtGdiGetOutlineTextMetricsInternalW system call. The system call...

Microsoft Windows - IOCTL_DISK_GET_DRIVE_GEOMETRY_EX Kernel partmgr Pool Memory Disclosure

Microsoft Windows - IOCTLDISKGETDRIVEGEOMETRYEX Kernel partmgr Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1156&desc=2 We have discovered that the handler of the IOCTLDISKGETDRIVEGEOMETRYEX IOCTL in partmgr.sys discloses portions of uninitialized poo...

Microsoft Windows - IOCTL_DISK_GET_DRIVE_LAYOUT_EX Kernel partmgr Pool Memory Disclosure Exploit

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1159 We have discovered that the handler of the IOCTLDISKGETDRIVELAYOUTEX IOCTL in partmgr.sys discloses portions of uninitialized pool memory to user-mode clients. The issue can...

Microsoft Windows - 'IOCTL_DISK_GET_DRIVE_LAYOUT_EX' Kernel partmgr Pool Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1159 We have discovered that the handler of the IOCTLDISKGETDRIVELAYOUTEX IOCTL in partmgr.sys discloses portions of uninitialized pool memory to user-mode clients. The issue can be reproduced by running the attached...

Microsoft Windows - 'IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS' volmgr Pool Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1154 We have discovered that the handler of the IOCTLVOLUMEGETVOLUMEDISKEXTENTS IOCTL in volmgr.sys discloses portions of uninitialized pool memory to user-mode clients, due to output structure alignment holes. On our test Window...

Microsoft Windows - IOCTL_DISK_GET_DRIVE_LAYOUT_EX Kernel partmgr Pool Memory Disclosure

Microsoft Windows - IOCTLDISKGETDRIVELAYOUTEX Kernel partmgr Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1159 We have discovered that the handler of the IOCTLDISKGETDRIVELAYOUTEX IOCTL in partmgr.sys discloses portions of uninitialized pool memory to...

Microsoft Windows - 'nt!NtQueryVolumeInformationFile (FileFsVolumeInformation)' Kernel Pool Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1166 We have discovered that the nt!NtQueryVolumeInformationFile system call discloses portions of uninitialized pool memory to user-mode clients, due to output structure alignment holes. On our test Windows 10 32-bit workstation...