fuzz CVE-2019-1118-vulnerability warning-the black bar safety net

! This article is to analysis about CVE-2019-1118, the problem is stack corruption in the OpenType font handling due to negative cubeStackDepth Vulnerability reproduction Build environment, simple to reproduce it git clone https://github.com/adobe-type-tools/afdko cd afdko git checkout 2.8.8 cd c...

Microsoft DirectWrite AFDKO - Stack Corruption in OpenType Font Handling due to Out-of-Bounds cubeStackDepth

Microsoft DirectWrite AFDKO - Stack Corruption in OpenType Font Handling due to Out-of-Bounds cubeStackDepth ----===== Background =====----- AFDKO Adobe Font Development Kit for OpenType is a set of tools for examining, modifying and building fonts. The core part of this toolset is a font handlin...