Mercurial > vim
view src/INSTALLmac.txt @ 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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INSTALLmac.txt - Installation of Vim on Apple MacOS This file contains instructions for compiling Vim. If you already have an executable version of Vim, you don't need this. MacOS Classic is no longer supported. If you really want it use Vim 6.4. Only '/' is supported as path separator. ---------------------------------------------------------------------------- Prerequisites ---------------------------------------------------------------------------- Make sure you've installed Xcode and CommandLineTools. You can download Xcode from the Mac App Store, for free. To check for CommandLineTools open a terminal and do: $ make --version If not installed yet a window pops up instructing you to install the developer tools. If you don't have the source yet, best is to use git (which you need to install first), see http://www.vim.org/git.php Or you can download and unpack the Unix tar archive, see http://www.vim.org/download.php ---------------------------------------------------------------------------- Build and install the terminal version. ---------------------------------------------------------------------------- You can compile vim with the standard Unix routine: cd vim/src make make test sudo make install If you get an error "glibtool: command not found" search on stackoverflow for mac-osx-where-can-i-download-glibtool. With Homebrew, run: brew install libtool To build libtool from source: 1. Download the source code from https://www.gnu.org/software/libtool/. 2. Run these commands from the root of the source code directory: ./configure --program-prefix=g make sudo make install ---------------------------------------------------------------------------- Build and install the GUI version with X-Windows ---------------------------------------------------------------------------- NOTE: this probably no longer works, since Athena support has been removed. First, install XQuartz, which you can download from https://www.xquartz.org. To tell configure to use a GUI you can edit the Makefile and uncomment these two lines (remove the # at the start of the line): CONF_OPT_GUI = --enable-gui=athena CONF_OPT_DARWIN = --disable-darwin Do "make distclean" to start with a clean slate. Then build as with the terminal version above. Instead of "athena" you can try "gtk2" but you probably need to install GTK first. ---------------------------------------------------------------------------- Notes ---------------------------------------------------------------------------- Mac-specific configure options are explained in the Makefile: --disable-darwin --with-mac-arch