core/fxge/ge/fx_ge_text.cpp in PDFium, as used in Google Chrome before 51.0.2704.63, miscalculates certain index values, which allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted PDF document.

The renderer implementation in Google Chrome before 51.0.2704.63 does not properly restrict public exposure of classes, which allows remote attackers to obtain sensitive information via vectors related to extensions.

extensions/renderer/resources/binding.js in the extension bindings in Google Chrome before 51.0.2704.63 does not properly use prototypes, which allows remote attackers to bypass the Same Origin Policy via unspecified vectors.

browser/safe_browsing/srt_field_trial_win.cc in Google Chrome before 51.0.2704.63 does not use the HTTPS service on dl.google.com to obtain the Software Removal Tool, which allows remote attackers to spoof the chrome_cleanup_tool.exe (aka CCT) file via a man-in-the-middle attack on an HTTP session.

Use-after-free vulnerability in ports/SkFontHost_FreeType.cpp in Skia, as used in Google Chrome before 51.0.2704.63, allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via unknown vectors.

WebKit/Source/core/css/StyleSheetContents.cpp in Blink, as used in Google Chrome before 51.0.2704.63, permits cross-origin loading of CSS stylesheets by a ServiceWorker even when the stylesheet download has an incorrect MIME type, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.

Multiple unspecified vulnerabilities in Google Chrome before 51.0.2704.63 allow attackers to cause a denial of service or possibly have other impact via unknown vectors.

Skia, as used in Google Chrome before 51.0.2704.63, mishandles coincidence runs, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted curves, related to SkOpCoincidence.cpp and SkPathOpsCommon.cpp.

The extensions subsystem in Google Chrome before 51.0.2704.63 allows remote attackers to bypass the Same Origin Policy via unspecified vectors.

Heap-based buffer overflow in the opj_j2k_read_SPCod_SPCoc function in j2k.c in OpenJPEG, as used in PDFium in Google Chrome before 51.0.2704.63, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted PDF document.