Adobe Acrobat CoolType (AFDKO) - Memory Corruption in the Handling of Type 1 Font loadstore Operators

Adobe Acrobat CoolType AFDKO - Memory Corruption in the Handling of Type 1 Font loadstore Operators -----===== 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 handling librar...

Adobe Acrobat CoolType (AFDKO) - Call from Uninitialized Memory due to Empty FDArray in Type 1 Fonts

Adobe Acrobat CoolType AFDKO - Call from Uninitialized Memory due to Empty FDArray in Type 1 Fonts -----===== 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 handling library...

Adobe Acrobat CoolType (AFDKO) - Call from Uninitialized Memory due to Empty FDArray in Type 1 Fonts

-----===== 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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

Adobe Acrobat CoolType (AFDKO) - Memory Corruption in the Handling of Type 1 Font load/store Operators

-----===== 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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

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 - Heap-Based Out-of-Bounds ReadWrite in OpenType Font Handling Due to Empty ROS Strings

Microsoft DirectWrite AFDKO - Heap-Based Out-of-Bounds ReadWrite in OpenType Font Handling Due to Empty ROS Strings -----===== 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...

Microsoft DirectWrite / AFDKO - Heap-Based Out-of-Bounds Read/Write in OpenType Font Handling Due to Empty ROS Strings

-----===== 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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

Microsoft DirectWrite / AFDKO - NULL Pointer Dereferences in OpenType Font Handling While Accessing Empty dynarrays

-----===== 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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

Microsoft DirectWrite / AFDKO - Stack Corruption in OpenType Font Handling Due to Negative nAxes

-----===== 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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

Microsoft DirectWrite / AFDKO - Out-of-Bounds Read in OpenType Font Handling Due to Undefined FontName Index

-----===== 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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...

Microsoft DirectWrite AFDKO - Interpreter Stack Underflow in OpenType Font Handling Due to Missing CHKUFLOW

Microsoft DirectWrite AFDKO - Interpreter Stack Underflow in OpenType Font Handling Due to Missing CHKUFLOW -----===== 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...

Microsoft DirectWrite AFDKO - Use of Uninitialized Memory While Freeing Resources in var_loadavar

Microsoft DirectWrite AFDKO - Use of Uninitialized Memory While Freeing Resources in varloadavar -----===== 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 handling library...

Microsoft DirectWrite AFDKO - Heap-Based Buffer Overflow in OpenType Font Handling in readEncoding

Microsoft DirectWrite AFDKO - Heap-Based Buffer Overflow in OpenType Font Handling in readEncoding -----===== 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 handling library...

Microsoft DirectWrite AFDKO - NULL Pointer Dereferences in OpenType Font Handling While Accessing Empty dynarrays

Microsoft DirectWrite AFDKO - NULL Pointer Dereferences in OpenType Font Handling While Accessing Empty dynarrays -----===== 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...

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...

Microsoft DirectWrite AFDKO - Stack Corruption in OpenType Font Handling Due to Negative cubeStackDepth

Microsoft DirectWrite AFDKO - Stack Corruption in OpenType Font Handling Due to Negative 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 handling...

Microsoft DirectWrite AFDKO - Heap-Based Buffer Overflow in OpenType Font Handling in readCharset

Microsoft DirectWrite AFDKO - Heap-Based Buffer Overflow in OpenType Font Handling in readCharset -----===== 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 handling library...

Microsoft DirectWrite AFDKO - Out-of-Bounds Read in OpenType Font Handling Due to Undefined FontName Index

Microsoft DirectWrite AFDKO - Out-of-Bounds Read in OpenType Font Handling Due to Undefined FontName Index -----===== 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 handling...

Microsoft DirectWrite / AFDKO - Heap-Based Buffer Overflow in OpenType Font Handling in readEncoding

-----===== 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 handling library written in C, which provides interfaces for reading and writing Type 1, OpenType, TrueType to some...