Exposure of Sensitive Information to an Unauthorized Actor
The ParamTraits<SkBitmap>::Read function in common/common_param_traits.cc in Google Chrome before 188.8.131.52 does not initialize the memory locations that will hold bitmap data, which might allow remote attackers to obtain potentially sensitive information from process memory by providing insufficient data, related to use of a (1) thumbnail database or (2) HTML canvas.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.