CHANGES.md

0.8.2 (2024-03-08)

** Misc

• Best effort handling of <symbol@plt> in SSE script (x86 for now)
• Add an option to ignore or simply warn when trying to replace a symbol absent of the binary (-sse-missing-symbol)
• Warn for different threats to completeness at the end of SSE analysis

** Bugs

• Fix several issues in checkct analysis
• Fix choice option not showing the alternatives
• Fix several parsing issues
• Fix some download links in examples
• Fix several issues in architecture handling
• Fix compilation issues with OCaml 5

0.8.1 (2023-10-31)

** Misc

• Add basic opcode replacement and address hook in SSE script
• Add a registration mechanism for symbolic state
• Add an option to disable the monitor screen when curses is installed
• Small code improvements
• Upgrade ocamlformat to 0.26.1

** Bugs

• Fix some uncatched exceptions
• Fix a bug in checkct preprocessing

0.8.0 (2023-07-14)

** Features

• Add symbolic execution monitoring mechanism

** Documentation

• Add the tutorial "Checking constant-time security property"
• Add the tutorial "Monitoring the symbolic execution with a custom plugin"

** Examples

• Add a shadow stack SSE plugin
• Add a re-implementation of the relational symbolic engine

0.7.4 (2023-05-12)

** Bugs

• Fix infinite loop on arm64 basic bloc disassembly

0.7.3 (2023-05-05)

** Bugs

• Fix operator precedence issues in DBA parser
• Expected fix for a hard to reproduce overlapping text issue at the end of SSE exploration
• Fix issues with SSE intermediate representation

0.7.2 (2023-04-22)

** Bugs

• Backport fixes for SSE intermediate representation

0.7.1 (2023-02-14)

** Features

• New architecture support : Z80
• New quick merging strategy in SSE
• Support for custom array in SSE stubs

** Documentation

• Add the write-up "FCSC 2022: Licorne"

** Examples

• Add SSE prechall challenge from FCSC 2022
• Add SSE souk challenge from FCSC 2022
• Add SSE licorne challenge from FCSC 2022

0.6.3 (2022-12-08)

** Misc

• Restore SSE timeout option
• Enable non ELF nor PE file loading as a single contiguous bytes section

** Bugs

• Fix rare issues with SMT solvers

0.6.2 (2022-11-09)

** Misc

• Improve SSE SMT-LIB printer

** Bugs

• Fix SSE screen not properly releasing the terminal
• Fix SSE screen forget some pending logs
• Correct typo from #17

0.6.1 (2022-09-23)

** Bugs

• Fix the model extraction for newer versions of Bitwuzla
• Fix the timeout handler for ocaml-bitwuzla when 4.09 <= ocaml < 4.13
• Fix SSE not properly resetting the screen when an exception occurs

0.6.0 (2022-09-22)

** Features

• New architecture support : RISC V 64bit
• Catch interrupt signal (CTRL-C) in SSE in order to print exploration summary gracefully
• Switch between log and monitor screen in SSE by pressing space (require curses)

** Documentation

• Broaden the SSE manual reference
• Add the write-up "How to read the SSE exploration board"

** Bugs

• Fix bitvector canonical representation
• Fix compatibility issues with unisim-archisec.0.0.3
• Fix issues with new experimental SSE engine

0.5.0 (2022-04-18)

** Features

• Alternative experimental SSE engine (enabled with -sse-alternative-engine)
• Core dump support in SSE initialization
• Self-modifying code support in SSE (enabled with -sse-self-written-enum N)

** Examples

• Add SSE FlareOn 2021 challenge 2
• Add SSE gugus challenge from crackmes.one
• Add SSE hidden_password challenge from crackmes.one with dedicated write-up
• Add SSE license_checker_3 challenge from crackmes.one
• Add SSE trycrackme challenge from crackmes.one with dedicated write-up

0.4.1 (2021-12-20)

** Features

• Reworked Backward Bounded Symbolic Execution (together with some documentation)

** Misc

• Support native OCaml bitwuzla binding

** Bug

• Fix an issue with 64-bit kernel virtual addresses

0.4.0 (2021-10-12)

** Features

• New architecture support : ARMv7 Thumb mode (requires unisim_archisec)
• New architecture support : AARCH64 (requires unisim_archisec)
• New architecture support : AMD64 (requires unisim_archisec)
• Backward Bounded Symbolic Execution (experimental)
• Reworked Static Symbolic Execution (together with some documentation)

** Dropped features (until rework)

• Static Abstract Interpretation
• Dynamic Symbolic Execution

** Misc

• Use Dune build system
• Remove several system dependencies (PIQI, ZMQ)

0.3.0 (2020-01-21)

** Features

• New architecture support : RISC-V 32 bits
• Support for DWARF-4 debug instruction format
• Support to import IDA control-flow graph
• Add documented plugin creation example : mnemonic count [mcount]
• New Makefile 'library' to ease plugin creation

** Fixes

• Fix (vectorized instructions) x86 decoder

** Misc

• Detach PINSEC to own repository (support to be deprecated in later version)

0.2.0 (2018-10-01)

• New symbolic execution engine
• New interpreter for binary code
• Improved logical representation for formulas
• New internal control-flow-graph representation
• Directive language for symbolic execution control
• Support for new PIN tool xtrasec
• Improved x86 decoder
  • Fixed bugs reported by KAIST
• Docker support
  • includes Unisim-vp ARM v7 decoder
  • includes new PIN tool xtrasec

0.1.0 (2017-03-01)

First release