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Files from mjurczyk

Email addressmjurczyk at google.com
First Active2015-08-19
Last Active2023-12-08
Microsoft Windows Kernel win32k!PROXYPORT::SendRequest Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit pool memory disclosure vulnerability in win32k!PROXYPORT::SendRequest.

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0814
SHA-256 | 119acd7871890c34ae09087667cd36aa8bd6b2ce66a1ff14d13a2a5a53437781
Microsoft Windows Kernel REG_RESOURCE_REQUIREMENTS_LIST Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit pool memory disclosure vulnerability via REG_RESOURCE_REQUIREMENTS_LIST registry values.

tags | advisory, kernel, registry
systems | windows
advisories | CVE-2018-0900
SHA-256 | 1550cc46fe7a3f57880f07c2504a93b23de2428f61b09def06cbb61cf5b64e8a
Microsoft Windows Kernel REG_RESOURCE_LIST Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit pool memory disclosure vulnerability via REG_RESOURCE_LIST registry values (videoprt.sys descriptors).

tags | advisory, kernel, registry
systems | windows
advisories | CVE-2018-0899
SHA-256 | 69b444dc190f17c0fe398e83b60a8120337dbed1b5a38f5316df706a0d50461d
Microsoft Windows Kernel REG_RESOURCE_LIST Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit pool memory disclosure vulnerability via REG_RESOURCE_LIST registry values (CmResourceTypeDevicePrivate entries).

tags | advisory, kernel, registry
systems | windows
advisories | CVE-2018-0898
SHA-256 | 2f32ed721390c6207af8dde961475d5f6dd8d7e5007722aeec53608034508481
Microsoft Windows Kernel nt!KiDispatchException Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a stack memory disclosure vulnerability in nt!KiDispatchException.

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0897
SHA-256 | 3508f1ab03eafadda6666b45fe4e78b03c008fb28fd328748b2730d2681b11e5
Microsoft Windows Kernel msrpc!LRPC_CASSOCIATION::AlpcSendCancelMessage Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a stack memory disclosure vulnerability in msrpc!LRPC_CASSOCIATION::AlpcSendCancelMessage.

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0896
SHA-256 | e15e5df1c47b5a1461e7294316b51f3a24c220e91c4dcbe7cd69ab6642ddcd19
Microsoft Windows Kernel NtQueryInformationThread(ThreadBasicInformation) Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit stack memory disclosure vulnerability in NtQueryInformationThread(ThreadBasicInformation).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0895
SHA-256 | 2c54704b6392044c91905395b077ff12a66991f3ecdad28a2cd4cfc297d6ed93
Microsoft Windows Kernel NtQueryVirtualMemory(MemoryMappedFilenameInformation) Memory Disclosure
Posted Mar 21, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Window kernel suffers from a 64-bit pool memory disclosure vulnerability in NtQueryVirtualMemory(MemoryMappedFilenameInformation).

tags | exploit, kernel
advisories | CVE-2018-0894
SHA-256 | 91bb1fe9d340829a19346fa19e5989ef6a06aec3e99365e37e32fada68de945b
Windows Kernel win32k!fnHkINLPMSLLHOOKSTRUCT Memory Disclosure
Posted Feb 22, 2018
Authored by Google Security Research, mjurczyk

The 64-bit Windows kernel suffers from a stack memory disclosure vulnerability in win32k!fnHkINLPMSLLHOOKSTRUCT (via user-mode callback).

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0810
SHA-256 | 39ed1a553dc5ba7854bda24d96724a606df94f6824a594b2c558d95999b97f8b
Windows Kernel win32k!SfnINLPHELPINFOSTRUCT Memory Disclosure
Posted Feb 22, 2018
Authored by Google Security Research, mjurczyk

The 64-bit Windows kernel suffers from a stack memory disclosure vulnerability in win32k!SfnINLPHELPINFOSTRUCT (via user-mode callback).

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0810
SHA-256 | 9db2b6a2f72313734343e3ae0ca5ed65c710e29ce3e096990cacc40fef35204e
Windows Kernel win32k!fnHkINLPMOUSEHOOKSTRUCTEX Memory Disclosure
Posted Feb 22, 2018
Authored by Google Security Research, mjurczyk

The 64-bit Windows kernel suffers from a stack memory disclosure vulnerability in win32k!fnHkINLPMOUSEHOOKSTRUCTEX (via user-mode callback).

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0810
SHA-256 | 9dc16fe0d908112819abe13e59b6af859aefcf4bc80c0dab0b2d415048277088
Windows Kernel win32k!SfnINOUTLPWINDOWPOS Memory Disclosure
Posted Feb 22, 2018
Authored by Google Security Research, mjurczyk

The 64-bit Windows kernel suffers from a pool memory disclosure vulnerability in win32k!SfnINOUTLPWINDOWPOS (via user-mode callback).

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0810
SHA-256 | 1eed7b00222e29c978acb68fc8864908886b54f016ea6b4c09c3f1a9b30a0409
Windows Kernel Double Fetches
Posted Feb 22, 2018
Authored by Google Security Research, mjurczyk

The Windows Kernel suffers from double fetches in win32kfull!xxxImeWindowPosChanged and win32kfull!InternalRebuildHwndListForIMEClass.

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0809
SHA-256 | 04bd702a96710210ed2281a1b45d1698d4d195df575dc55bd9e354d475aaef45
Windows Kernel nt!RtlpCopyLegacyContextX86 Stack Memory Disclosure
Posted Feb 20, 2018
Authored by Google Security Research, mjurczyk

The Windows kernel suffers from a nt!RtlpCopyLegacyContextX86 stack memory disclosure vulnerability.

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0832
SHA-256 | 199235f1e50c783934bc089610c17d71c6e7359a26462fdd0048024c134ddbae
Microsoft Windows Kernel ATMFD.DLL NamedEscape 0x250D Pool Corruption
Posted Jan 10, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows OpenType ATMFD.DLL kernel-mode font driver has an undocumented "escape" interface, handled by the standard DrvEscape and DrvFontManagement functions implemented by the module. The interface is very similar to Buffered IOCTL in nature, and handles 13 different operation codes in the numerical range of 0x2502 to 0x2514. It is accessible to user-mode applications through an exported (but not documented) gdi32!NamedEscape function, which internally invokes the NtGdiExtEscape syscall.

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0788
SHA-256 | bb274850f13f39d2cc7b83f33319ed2f50d1c874d081fd6fe6774c05fbaf68fb
Microsoft Windows Kernel ATMFD.DLL Out-Of-Bounds Read
Posted Jan 10, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows OpenType ATMFD.DLL kernel-mode driver lacks any sort of sanitization of various 32-bit offsets found in .MMM files (Multiple Master Metrics), and instead uses them blindly while loading Type 1 Multiple-Master fonts in the system.

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0754
SHA-256 | b8102ba5cbc41970fedaf8cb7c662e036805d3aff1751f055103ddb03a105367
Microsoft Windows Kernel nt!PiUEventHandleGetEven Stack Memory Disclosure
Posted Jan 10, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a stack memory disclosure from nt!RawMountVolume via nt!PiUEventHandleGetEvent (\Device\DeviceApi\CMNotify device).

tags | advisory, kernel
systems | windows
advisories | CVE-2018-0747
SHA-256 | 4245759a610e4875033a8cfc4ff41296198e721a838158cc5a4f29dd1838640c
Microsoft Windows Kernel nt!NtQuerySystemInformation Memory Disclosure
Posted Jan 10, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel pool suffers from a memory disclosure in nt!NtQuerySystemInformation (information class 138, QueryMemoryTopologyInformation).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0746
SHA-256 | e572e268023cabc683d71d1229389e3c95052ecd8ab0d445337f24230815954a
Microsoft Windows Kernel nt!NtQueryInformationProcess Stack Memory Disclosure
Posted Jan 10, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a stack memory disclosure in nt!NtQueryInformationProcess (information class 76, QueryProcessEnergyValues).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0745
SHA-256 | bfd46a1d8d67416403423e1b59913b8c6cd67fe31a752a390b97a6aac06a5beb
Microsoft Windows Kernel Ring-0 Address Leak
Posted Dec 20, 2017
Authored by Google Security Research, mjurczyk

It was discovered that it is possible to disclose addresses of kernel-mode Paged Pool allocations via a race-condition in the implementation of the NtQueryVirtualMemory system call (information class 2, MemoryMappedFilenameInformation). The vulnerability affects Windows 7 to 10, 32-bit and 64-bit.

tags | exploit, kernel
systems | windows
SHA-256 | d98ff684017e5e946a7321065ff44ae71f7be8af943150e911e3bcb6d1916735
Microsoft Windows win32kfull!GreUpdateSpriteInternal Kernel Stack Memory Disclosure
Posted Nov 25, 2017
Authored by Google Security Research, mjurczyk

On Windows 10 32-bit version 1709, a kernel stack memory disclosure was discovered in win32kfull!GreUpdateSpriteInternal.

tags | advisory, kernel
systems | windows
SHA-256 | 311cb2fdcf45820b4bf355d49b361e30e088454da5c387727d873126a4419ea2
Microsoft Windows win32kbase!NtQueryCompositionInputQueueAndTransform Kernel Stack Memory Disclosure
Posted Nov 25, 2017
Authored by Google Security Research, mjurczyk

The win32k!NtQueryCompositionInputQueueAndTransform system call may disclose portions of uninitialized kernel stack memory to user-mode clients on Windows 10.

tags | advisory, kernel
systems | windows
SHA-256 | 2767071039e2aa61b519b9c307d3d818e894164055448140c5338e42bea14511
Microsoft Windows win32k!xxxSendMenuSelect Memory Disclosure
Posted Nov 21, 2017
Authored by Google Security Research, mjurczyk

There is a Microsoft Windows kernel stack memory disclosure vulnerability in win32k!xxxSendMenuSelect via fnHkINLPMSG user-mode callback.

tags | advisory, kernel
systems | windows
advisories | CVE-2017-11853
SHA-256 | 29ecb93fa8a796617a90f59536bcfb9ac394c28a5e7d91ca72284eb636894416
Microsoft Windows nt!NtQueryDirectoryFile (luafv!LuafvCopyDirectoryEntry) Disclosure
Posted Nov 21, 2017
Authored by Google Security Research, mjurczyk

It was discovered that the nt!NtQueryDirectoryFile system call discloses portions of uninitialized pool memory to user-mode clients on Windows 10, due to uninitialized fields in the output structure being copied to the application.

tags | exploit
systems | windows
advisories | CVE-2017-11831
SHA-256 | 26b521138b8cf592b692e063a57e00a17c82cb345e491baf906a7173cc27e0ce
Microsoft Windows NTFS File System Metadata Disclosures
Posted Nov 21, 2017
Authored by Google Security Research, mjurczyk

The Microsoft Windows Kernel suffers from multiple stack and pool memory disclosures into NTFS file system metadata.

tags | advisory, kernel
systems | windows
advisories | CVE-2017-11880
SHA-256 | 9bb7494ef313febec2f8ee393749b8c35f9776237506d2a47110240296b5f9a0
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