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Files from mjurczyk

Email addressmjurczyk at google.com
First Active2015-08-19
Last Active2020-05-12
Microsoft DirectWrite / AFDKO OpenType Stack Corruption Due To Negative cubeStackDepth
Posted Jul 10, 2019
Authored by Google Security Research, mjurczyk

Microsoft DirectWrite / AFDKO suffers from a stack corruption vulnerability in OpenType font handling due to negative cubeStackDepth.

tags | exploit
advisories | CVE-2019-1118
MD5 | c2b87476244efa92ba4a9be90250e805
Microsoft DirectWrite / AFDKO OpenType Stack Corruption Due To Out-Of-Bounds cubeStackDepth
Posted Jul 10, 2019
Authored by Google Security Research, mjurczyk

Microsoft DirectWrite / AFDKO suffers from a stack corruption vulnerability in OpenType font handling due to out-of-bounds cubeStackDepth.

tags | exploit
advisories | CVE-2019-1117
MD5 | ece5873e0796605b68a4b0b2246aca1d
Microsoft DirectWrite / AFDKO readTTCDirectory Integer Overflow
Posted Jul 10, 2019
Authored by Google Security Research, mjurczyk

Microsoft DirectWrite / AFDKO suffers from a heap-based buffer overflow vulnerability due to integer overflow in readTTCDirectory.

tags | exploit, overflow
MD5 | fd6441bc85a328f96dea6a3df9dd185e
Microsoft DirectWrite / AFDKO OpenType readStrings Buffer Overflow
Posted Jul 10, 2019
Authored by Google Security Research, mjurczyk

Microsoft DirectWrite / AFDKO suffers from a heap-based buffer overflow vulnerability in OpenType font handling in readStrings.

tags | exploit, overflow
advisories | CVE-2019-1122
MD5 | d0abe298b7099fdd56fd834959ccc56b
Microsoft DirectWrite / AFDKO OpenType blendArray Stack Corruption
Posted Jul 10, 2019
Authored by Google Security Research, mjurczyk

Microsoft DirectWrite / AFDKO suffers from a stack corruption vulnerability in OpenType font handling due to incorrect handling of blendArray.

tags | exploit
advisories | CVE-2019-1119
MD5 | 80a34393801d6bafb278329be316ef0b
Microsoft DirectWrite / AFDKO OpenType Stack Underflow
Posted Jul 10, 2019
Authored by Google Security Research, mjurczyk

Microsoft DirectWrite / AFDKO suffers from an interpreter stack underflow in OpenType font handling due to missing CHKUFLOW.

tags | exploit
MD5 | 7f6961168004be409e8c197691292c84
Microsoft DirectWrite / AFDKO OpenType readFDSelect Buffer Overflow
Posted Jul 10, 2019
Authored by Google Security Research, mjurczyk

Microsoft DirectWrite / AFDKO suffers from a heap-based buffer overflow vulnerability in OpenType font handling in readFDSelect.

tags | exploit, overflow
advisories | CVE-2019-1120
MD5 | 8fb35d7cf2ae4c9390c26184ed325550
Microsoft Font Subsetting DLL MergeFonts Out Of Bounds Read
Posted Jul 9, 2019
Authored by Google Security Research, mjurczyk

An issue has been discovered where the Microsoft Font Subsetting DLL (fontsub.dll) suffers from a heap-based out-of-bounds read vulnerability in MergeFonts.

tags | exploit
MD5 | dd39b9fd5450a1793c602b5c46899104
Oracle Java Runtime Environment GlyphIterator::setCurrGlyphID Heap Corruption
Posted Apr 17, 2019
Authored by Google Security Research, mjurczyk

A heap corruption was observed in Oracle Java Runtime Environment version 8u202 (latest at the time of this writing) while fuzz-testing the processing of TrueType fonts.

tags | exploit, java
advisories | CVE-2019-2698
MD5 | 074ca17f20fc3585508db683bc708cad
Oracle Java Runtime Environment sc_FindExtrema4 Heap Corruption
Posted Apr 17, 2019
Authored by Google Security Research, mjurczyk

A heap corruption was observed in Oracle Java Runtime Environment version 8u202 (latest at the time of this writing) while fuzz-testing the processing of TrueType, implemented in a proprietary t2k library.

tags | exploit, java
advisories | CVE-2019-2697
MD5 | 74f5b83ac15a386d0e98eb59705c2a66
tcpdump Out-Of-Bounds Read
Posted Feb 27, 2019
Authored by Google Security Research, mjurczyk

tcpdump was found to suffer from multiple out-of-bounds read vulnerabilities.

tags | exploit, vulnerability
MD5 | dcc3adb2ce29e405d96b9b12d4aa7a31
Oracle Java Runtime Environment TTF Font Heap Out-Of-Bounds Read
Posted Feb 18, 2019
Authored by Google Security Research, mjurczyk

A heap-based out-of-bounds read was observed in Oracle Java Runtime Environment version 8u202 while fuzz-testing the processing of TrueType fonts rendering in AlternateSubstitutionSubtable::process.

tags | exploit, java
MD5 | b638f363683e27c69a03b4345ce06c4f
Oracle Java Runtime Environment TTF Font Heap Out-Of-Bounds Read
Posted Feb 18, 2019
Authored by Google Security Research, mjurczyk

A heap-based out-of-bounds read was observed in Oracle Java Runtime Environment version 8u202 while fuzz-testing the processing of TrueType fonts rendering in ExtractBitMap_blocClass.

tags | exploit, java
MD5 | 29c31d355f8a1212c89be8f95c56a750
Oracle Java Runtime Environment TTF Font Heap Out-Of-Bounds Read
Posted Feb 18, 2019
Authored by Google Security Research, mjurczyk

A heap-based out-of-bounds read was observed in Oracle Java Runtime Environment version 8u202 while fuzz-testing the processing of TrueType fonts rendering in OpenTypeLayoutEngine::adjustGlyphPositions.

tags | exploit, java
MD5 | 44b1d7a8a3d751b214b9f70aab2957fd
Oracle Java Runtime Environment OpenType Font Heap Out-Of-Bounds Read
Posted Feb 18, 2019
Authored by Google Security Research, mjurczyk

A heap-based out-of-bounds read was observed in Oracle Java Runtime Environment version 8u202 while fuzz-testing the processing of OpenType fonts.

tags | exploit, java
MD5 | 5131a27c80fb2148eac10f4c01318b88
Wireshark get_t61_string Heap Out-Of-Bounds Read
Posted Jan 8, 2019
Authored by Google Security Research, mjurczyk

Wireshark suffers from a get_t61_string heap out-of-bounds read vulnerability.

tags | exploit
MD5 | 43cb4c02b902708d8069391d9e3e6872
Wireshark cdma2k_message_ACTIVE_SET_RECORD_FIELDS Stack Corruption
Posted Dec 6, 2018
Authored by Google Security Research, mjurczyk

Wireshark suffers from a stack corruption vulnerability in cdma2k_message_ACTIVE_SET_RECORD_FIELDS.

tags | exploit
MD5 | 4f571857a06d3e3cbcb563eac1e1b3e6
Wireshark find_signature Heap Out-Of-Bounds Read
Posted Dec 5, 2018
Authored by Google Security Research, mjurczyk

Wireshark suffers from a heap out-of-bounds read in find_signature.

tags | exploit
advisories | CVE-2018-19627
MD5 | 84046c2a04b1da337321b35fd5743a13
Microsoft Windows Kernel Malformed GPOS Table Buffer Overflow
Posted Jul 24, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from an OTF font processing pool-based buffer overflow via a malformed GPOS table in ATMFD.DLL.

tags | exploit, overflow, kernel
systems | windows
advisories | CVE-2015-2426
MD5 | 6b9f72a57dc4ca122f172caf45951a31
Microsoft Windows Kernel nt!NtQueryVirtualMemory Stack Memory Disclosure
Posted Apr 17, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit stack memory disclosure vulnerability in nt!NtQueryVirtualMemory (MemoryImageInformation).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0968
MD5 | d945b68fdd1c9e8436634fd2987bc3c8
Microsoft Windows Kernel nt!NtQueryVirtualMemory Stack Memory Disclosure
Posted Apr 17, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit stack memory disclosure vulnerability in nt!NtQueryVirtualMemory (Memory(Privileged)BasicInformation).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0974
MD5 | 86867b4c99f8622edfa1f1524af90f0f
Microsoft Windows Kernel nt!NtQueryInformationProcess Memory Disclosure
Posted Apr 17, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit pool / stack memory disclosure vulnerability in nt!NtQueryInformationProcess (ProcessImageFileName).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0973
MD5 | df5a55deeaf075ec47d80a3863ce2a4b
Microsoft Windows Kernel nt!NtQueryInformationTransactionManager Pool Memory Disclosure
Posted Apr 17, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a pool memory disclosure vulnerability in nt!NtQueryInformationTransactionManager (TransactionManagerRecoveryInformation).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0972
MD5 | 0c23649c7eecdc1126d54237634aa782
Microsoft Windows Kernel nt!NtQuerySystemInformation Stack Memory Disclosure
Posted Apr 17, 2018
Authored by Google Security Research, mjurczyk

The Microsoft Windows kernel suffers from a 64-bit stack memory disclosure vulnerability in nt!NtQuerySystemInformation (SystemPageFileInformation(Ex)).

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0971
MD5 | 076794ccd2fb215a95924c9dc5b1883f
Microsoft Windows Kernel nt!NtQueryVolumeInformationFile Stack Memory Disclosure
Posted Apr 17, 2018
Authored by Google Security Research, mjurczyk

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

tags | exploit, kernel
systems | windows
advisories | CVE-2018-0970
MD5 | bffef04b79c69684d6401043c15978e2
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