platform/graphics/filters/FEColorMatrix.cpp in the SVG implementation in Blink, as used in Google Chrome before 43.0.2357.65, does not properly handle an insufficient number of values in an feColorMatrix filter, which allows remote attackers to cause a denial of service (container overflow) or possibly have unspecified other impact via a crafted document.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.