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>

" Vim filetype plugin file
" Language:	HTML Tidy Configuration
" Maintainer:	Doug Kearns <dougkearns@gmail.com>
" Last Change:	2020 Sep 4

if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

let s:cpo_save = &cpo
set cpo&vim

setlocal comments=:#,://
setlocal commentstring=#\ %s
setlocal formatoptions-=t formatoptions+=croql

if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
  let b:browsefilter = "HTML Tidy Files (tidyrc, .tidyrc, tidy.conf)\ttidyrc;.tidyrc;tidy.conf\n" .
		     \ "HTML Files (*.html, *.htm)\t*.html;*.htm\n" .
		     \ "XHTML Files (*.xhtml, *.xhtm)\t*.xhtml;*.xhtm\n" .
		     \ "XML Files (*.xml)\t*.xml\n" .
		     \ "All Files (*.*)\t*.*\n"
endif

let b:undo_ftplugin = "setl fo< com< cms<" .
		    \ " | unlet! b:browsefilter"

let &cpo = s:cpo_save
unlet s:cpo_save

" vim: nowrap sw=2 sts=2 ts=8