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Foxit PDF Reader 1.0.1.0925 - kdu_core::kdu_codestream::get_subsampling Memory Corruption

Author

Google Security Research

Risk

[

Security Risk Medium

]

0day-ID

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Date add

Platform

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=743
 
We have identified the following memory corruption vulnerability in Foxit PDF Reader (version 1.0.1.0925 for Linux 64-bit), when started with a specially crafted PDF file in the following way:
 
$ DISPLAY=:1 FoxitReader /path/to/poc/file.pdf
 
The DISPLAY=:1 environment variable is set due to the fact that we are testing the application with a virtual X server (Xvfb), but the issue should be equally reproducible with the program started with standard display settings, too.
 
An example excerpt from the crash log is as follows:
 
--- cut ---
Program received signal SIGSEGV, Segmentation fault.
0x00000000008ee95d in kdu_core::kdu_codestream::get_subsampling(int, kdu_core::kdu_coords&, bool) ()
(gdb) info reg $rdx
rdx            0x90ff9fc23e15101d       -7998498756572671971
(gdb) where
#0  0x00000000008ee95d in kdu_core::kdu_codestream::get_subsampling(int, kdu_core::kdu_coords&, bool) ()
#1  0x0000000000922297 in kdu_supp::kdu_region_decompressor::start(kdu_core::kdu_codestream, kdu_supp::kdu_channel_mapping*, int, int, int, kdu_core::kdu_dims, kdu_core::kdu_coords, kdu_core::kdu_coords, bool, kdu_core::kdu_component_access_mode, bool, kdu_core::kdu_thread_env*, kdu_core::kdu_thread_queue*) ()
#2  0x00000000008bd50d in CJPX_Decoder::Start(unsigned char*, int, int, unsigned char*) ()
#3  0x00000000007f8d77 in CPDF_DIBSource::StartLoadJpxBitmap() ()
#4  0x00000000007f9137 in CPDF_DIBSource::CreateDecoder() ()
#5  0x00000000007fadb0 in CPDF_DIBSource::StartLoadDIBSource(CPDF_Document*, CPDF_Stream const*, int, CPDF_Dictionary*, CPDF_Dictionary*, int, unsigned int, int) ()
#6  0x00000000007f2f74 in CPDF_ImageCache::StartGetCachedBitmap(CPDF_Dictionary*, CPDF_Dictionary*, int, unsigned int, int, CPDF_RenderStatus*, int, int) ()
#7  0x00000000007f3ba0 in CPDF_PageRenderCache::StartGetCachedBitmap(CPDF_Stream*, int, unsigned int, int, CPDF_RenderStatus*, int, int) ()
#8  0x00000000007fb00d in CPDF_ProgressiveImageLoaderHandle::Start(CPDF_ImageLoader*, CPDF_ImageObject const*, CPDF_PageRenderCache*, int, unsigned int, int, CPDF_RenderStatus*, int, int) ()
#9  0x00000000007fb13b in CPDF_ImageLoader::StartLoadImage(CPDF_ImageObject const*, CPDF_PageRenderCache*, void*&, int, unsigned int, int, CPDF_RenderStatus*, int, int) ()
#10 0x00000000007f42ff in CPDF_ImageRenderer::StartLoadDIBSource() ()
#11 0x00000000007f6782 in CPDF_ImageRenderer::Start(CPDF_RenderStatus*, CPDF_PageObject const*, CFX_Matrix const*, int, int) ()
#12 0x00000000007f1689 in CPDF_RenderStatus::ContinueSingleObject(CPDF_PageObject const*, CFX_Matrix const*, IFX_Pause*) ()
#13 0x00000000007f237a in CPDF_ProgressiveRenderer::Continue(IFX_Pause*) ()
#14 0x000000000061d75d in CPDFViewerPageEx::Rendering(CFX_DIBitmap*, int, int, int, int, int, CPDF_RenderOptions*) ()
#15 0x000000000061d9cb in CPDFViewerPageEx::DrawPageContent(CFX_DIBitmap*, CFX_ViewRect&) ()
#16 0x000000000061da6a in CPDFViewerEx::DrawPages(CFX_DIBitmap*) ()
#17 0x000000000061daa8 in CPDFViewerEx::Paint(CFX_DIBitmap*) ()
#18 0x000000000061daf1 in CPDFViewerEx::ContinueRendering() ()
#19 0x000000000061de17 in CPDFViewerEx::GetRenderData(int) ()
#20 0x000000000044b274 in CPDF_TVPreview::paintEvent (this=0x1946d30)
    at ../../Readerlite/ReaderLite/src/preview.cpp:1305
#21 0x00007ffff74c2302 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007ffff7486c8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007ffff748be56 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007ffff6340c2d in QCoreApplication::notifyInternal(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007ffff74bcbea in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007ffff74bd5bc in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007ffff74bc786 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007ffff74bd5bc in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007ffff74bd434 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007ffff74bc786 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007ffff74bd5bc in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007ffff74bc786 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007ffff74bd5bc in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007ffff74bd434 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, Q---Type <return> to continue, or q <return> to quit---
Region const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007ffff74bd434 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007ffff74bd434 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007ffff74bc786 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007ffff74bd5bc in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007ffff74bd434 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007ffff74bc786 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007ffff7493233 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007ffff7493941 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007ffff74e0973 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#44 0x00007ffff7486c8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007ffff748be56 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007ffff6340c2d in QCoreApplication::notifyInternal(QObject*, QEvent*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007ffff6860ea6 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#48 0x00007ffff6861995 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#49 0x00007ffff684a858 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#50 0x00007fffecc415b0 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#51 0x00007ffff4a79e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007ffff4a7a048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007ffff4a7a0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#54 0x00007ffff638d98c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00007ffff633f96b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#56 0x00007ffff63460e1 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#57 0x0000000000439e25 in main (argc=2, argv=0x7fffffffe298) at ../../Readerlite/ReaderLite/src/main.cpp:310
(gdb) x/10i $rip
=> 0x8ee95d <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+135>:    mov    0x4(%rdx),%rcx
   0x8ee961 <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+139>:    mov    %rcx,(%rbx)
   0x8ee964 <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+142>:
    movslq 0x320(%rax),%rcx
   0x8ee96b <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+149>:    mov    0x4(%rbx),%esi
   0x8ee96e <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+152>:
    movzbl 0x19(%rdx,%rcx,1),%ecx
   0x8ee973 <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+157>:    shl    %cl,%esi
   0x8ee975 <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+159>:
    movslq 0x320(%rax),%rcx
   0x8ee97c <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+166>:    mov    %esi,0x4(%rbx)
   0x8ee97f <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+169>:
    movzbl 0x3a(%rdx,%rcx,1),%ecx
   0x8ee984 <_ZN8kdu_core14kdu_codestream15get_subsamplingEiRNS_10kdu_coordsEb+174>:    mov    (%rbx),%edx
(gdb) info reg $rdx
rdx            0x90ff9fc23e15101d       -7998498756572671971
(gdb) x/10wx $dx
0x101d: Cannot access memory at address 0x101d
(gdb) x/10wx $rdx
0x90ff9fc23e15101d:     Cannot access memory at address 0x90ff9fc23e15101d
--- cut ---
 
Attached is a proof of concept PDF file.
 
 
Proof of Concept:
https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/39943.zip

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Foxit PDF Reader 1.0.1.0925 - kdu_core::kdu_codestream::get_subsampling Memory Corruption

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