Memory disclosure via out-of-bounds print processing read

Out-of-bounds reads in Canon Generic Plus printer drivers 3.30 and earlier allow attackers to expose memory during print processing. The print-processing code reads beyond a memory buffer when handling output from an attacker-controlled program; Canon has not disclosed the affected file or function. Exploitation requires active user interaction and concurrent processing with an ordinary application, and it can expose process memory or interrupt that application's printing.