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 win32k!NtGdiMakeFontDir(CVE-2017-8477)

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 by first filling a large portion of the kernel stack with a controlled...

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...

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!NtQueryInformationJobObject(CVE-2017-8478)

We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented QueryInformationJobObject API function called with the 12 information class discloses portions of uninitialized kernel stack memory to user-mode clients. The specific name of the 12 information...

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

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...

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!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 (BasicLimitInformation_ ExtendedLimitInformation) Kernel Stack Memory Disclosure

Microsoft Windows - nt!NtQueryInformationJobObject BasicLimitInformation ExtendedLimitInformation Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1189&desc=2 We have discovered that the nt!NtQueryInformationJobObject system call corresponding 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!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!NtQueryInformationProcess (ProcessVmCounters) Kernel Stack Memory Disclosure

Microsoft Windows - nt!NtQueryInformationProcess ProcessVmCounters Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1190&desc=2 We have discovered that the nt!NtQueryInformationProcess system call called with the ProcessVmCounters information clas...

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

Microsoft Windows - nt!NtQueryInformationTransaction information class 1 Kernel Stack Memory Disclosure / 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...

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 through the win32k!NtGdiGetRealizationInfo system call. The concrete layout of the...

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!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 - 'nt!NtQueryInformationJobObject (BasicLimitInformation, ExtendedLimitInformation)' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1189&desc=2 We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented QueryInformationJobObject API function called with the JobObjectExtendedLimitInformation information class disclos...

Microsoft Windows - 'nt!NtQueryInformationJobObject (information class 12)' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1193 We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented QueryInformationJobObject API function called with the 12 information class discloses portions of uninitialized kernel...

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 QueryInformationJobObject API function called with the 28 information class discloses portions of uninitialized kernel...