Mercurial > vim
view runtime/indent/dts.vim @ 33664:06b59278bfcf v9.0.2070
patch 9.0.2070: [security] disallow setting env in restricted mode
Commit: https://github.com/vim/vim/commit/6b89dd6a7257a1e2e9c7ea070b407bc4674a5118
Author: Christian Brabandt <cb@256bit.org>
Date: Thu Oct 26 22:14:17 2023 +0200
patch 9.0.2070: [security] disallow setting env in restricted mode
Problem: [security] disallow setting env in restricted mode
Solution: Setting environment variables in restricted mode could
potentially be used to execute shell commands. Disallow this.
restricted mode: disable allow setting of environment variables
Setting environment variables in restricted mode, may have some unwanted
consequences. So, for example by setting $GCONV_PATH in restricted mode
and then calling the iconv() function, one may be able to execute some
unwanted payload, because the `iconv_open()` function internally uses
the `$GCONV_PATH` variable to find its conversion data.
So let's disable setting environment variables, even so this is no
complete protection, since we are not clearing the existing environment.
I tried a few ways but wasn't successful :(
One could also argue to disable the iconv() function completely in
restricted mode, but who knows what other API functions can be
influenced by setting some other unrelated environment variables.
So let's leave it as it is currently.
closes: #13394
See: https://huntr.com/bounties/b0a2eda1-459c-4e36-98e6-0cc7d7faccfe/
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 26 Oct 2023 22:30:03 +0200 |
parents | 695b50472e85 |
children |
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" Vim indent file " Language: Device Tree " Maintainer: Roland Hieber, Pengutronix <rhi@pengutronix.de> " if exists("b:did_indent") finish endif let b:did_indent = 1 setlocal autoindent setlocal nosmartindent setlocal indentkeys=o,O,0},0<>>,!<Ctrl-F> setlocal indentexpr=GetDTSIndent() setlocal nolisp let b:undo_indent = 'setl autoindent< smartindent< indentkeys< indentexpr< lisp<' function GetDTSIndent() let sw = shiftwidth() let lnum = v:lnum let line = getline(lnum) let prevline = getline(prevnonblank(lnum-1)) let prevind = indent(prevnonblank(lnum-1)) if prevnonblank(lnum-1) < 1 return 0 endif " Don't indent header and preprocessor directives if line =~ '^\s*\(/dts-\|#\(include\|define\|undef\|warn\(ing\)\?\|error\|if\(n\?def\)\?\|else\|elif\|endif\)\)' return 0 " Don't indent /node and &label blocks elseif line =~ '^\s*[/&].\+{\s*$' return 0 " Indent to matching bracket or remove one shiftwidth if line begins with } or > elseif line =~ '^\s*[}>]' " set cursor to closing bracket on current line let col = matchend(line, '^\s*[>}]') call cursor(lnum, col) " determine bracket type, {} or <> let pair = strpart('{}<>', stridx('}>', line[col-1]) * 2, 2) " find matching bracket pair let pairline = searchpair(pair[0], '', pair[1], 'bW') if pairline > 0 return indent(pairline) else return prevind - sw endif " else, add one level of indent if line ends in { or < or = or , elseif prevline =~ '[{<=,]$' return prevind + sw else return prevind endif endfunction