view ci/if_ver-1.vim @ 33865:8cdb69ea3711 v9.0.2143

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>
author Christian Brabandt <cb@256bit.org>
date Sun, 10 Dec 2023 15:16:05 +0100
parents 0878f0fd349b
children
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" Print all interface versions for Ubuntu. Part 1.

if 1
  execute 'source' expand('<sfile>:h') .. '/if_ver-cmd.vim'

  echo "*** Interface versions ***\n"

  echo 'Lua:'
  PrintVer lua print(vim.lua_version, jit and "(LuaJIT)" or "")

  echo 'MzScheme:'
  PrintVer mzscheme (display (version))

  echo 'Perl:'
  PrintVer perl print $^V

  echo 'Ruby:'
  PrintVer ruby print RUBY_VERSION

  echo 'Tcl:'
  PrintVer tcl puts [info patchlevel]

  echo 'Python 2:'
  PrintVer python print sys.version
endif