patch 9.0.2143: [security]: buffer-overflow in ex_substitute Commit: https://github.com/vim/vim/commit/abfa13ebe92d81aaf66669c428d767847b577453 Author: Christian Brabandt <cb@256bit.org> Date: Thu Nov 30 11:32:18 2023 +0100 patch 9.0.2143: [security]: buffer-overflow in ex_substitute Problem: [security]: buffer-overflow in ex_substitute Solution: clear memory after allocating When allocating the new_start pointer in ex_substitute() the memory pointer points to some garbage that the following for loop in ex_cmds.c:4743 confuses and causes it to accessing the new_start pointer beyond it's size, leading to a buffer-overlow. So fix this by using alloc_clear() instead of alloc(), which will clear the memory by NUL and therefore cause the loop to terminate correctly. Reported by @henices, thanks! closes: #13596 Signed-off-by: Christian Brabandt <cb@256bit.org>

:: command to build huge Vim 64 bit with OLE, Perl and Python.
:: First run: %VCDIR%\vcvarsall.bat x86_amd64
:: Ruby and Tcl are excluded, doesn't seem to work.
SET VCDIR="C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\"
SET TOOLDIR=E:\
%VCDIR%\bin\nmake -f Make_mvc.mak CPU=AMD64 GUI=yes OLE=yes PERL=E:\perl524 DYNAMIC_PERL=yes PERL_VER=524 PYTHON=%TOOLDIR%python27 DYNAMIC_PYTHON=yes PYTHON_VER=27 PYTHON3=%TOOLDIR%python35 DYNAMIC_PYTHON3=yes PYTHON3_VER=35  %1 IME=yes CSCOPE=yes