Mercurial > vim
view runtime/tools/ccfilter_README.txt @ 33096:828bcb1a37e7 v9.0.1833
patch 9.0.1833: [security] runtime file fixes
Commit: https://github.com/vim/vim/commit/816fbcc262687b81fc46f82f7bbeb1453addfe0c
Author: Christian Brabandt <cb@256bit.org>
Date: Thu Aug 31 23:52:30 2023 +0200
patch 9.0.1833: [security] runtime file fixes
Problem: runtime files may execute code in current dir
Solution: only execute, if not run from current directory
The perl, zig and ruby filetype plugins and the zip and gzip autoload
plugins may try to load malicious executable files from the current
working directory. This is especially a problem on windows, where the
current directory is implicitly in your $PATH and windows may even run a
file with the extension `.bat` because of $PATHEXT.
So make sure that we are not trying to execute a file from the current
directory. If this would be the case, error out (for the zip and gzip)
plugins or silently do not run those commands (for the ftplugins).
This assumes, that only the current working directory is bad. For all
other directories, it is assumed that those directories were
intentionally set to the $PATH by the user.
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Fri, 01 Sep 2023 00:00:02 +0200 |
parents | e751b5c9dff3 |
children |
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READ THIS FIRST =============== ccfilter is a C program to filter the output of a few compilers to a common QuickFix format. It is provided with Vim to make quickfix useful for more compilers. ccfilter WILL FAIL with long lines (more than 2047 bytes). COMPILING AND INSTALLING: ========================= To compile ccfilter, you can just do a plain: cc ccfilter.c -o ccfilter Though, it may be wise to have your default compiler defined, so you would normally compile it with one of the following: cc -D_GCC ccfilter.c -o ccfilter cc -D_AIX ccfilter.c -o ccfilter cc -D_ATT ccfilter.c -o ccfilter cc -D_IRIX ccfilter.c -o ccfilter cc -D_SOLARIS ccfilter.c -o ccfilter cc -D_HPUX ccfilter.c -o ccfilter You can then copy ccfilter to its target destination (i.e: /usr/local/bin). The man page ccfilter.1 has to be copied to somewhere in your MANPATH, under a man1 directory (i.e: /usr/local/man/man1). SUPPORTED COMPILERS/PORTING NOTES: ================================== The supported formats for the different compilers are described below: In this section, meta-names are used as place-holders in the line formats: <FILE> <ROW> <COL> <SEVERITY> <REASON> <> The <> denotes ignored text. Line formats are delimited by the ^ (caret) symbol. 0) Special case: "gmake directory change" lines: Lines with a format like: ^gmake[<NUM>]: Entering directory `<DIR>'^ are used to follow the directory changes during the make process, providing in the <FILE> part, a relative (if possible) directory path to the erroneous file. 1) GCC: Recognized lines are of the format: - ^In file included from <FILE>:<ROW>:^ Line following this one is used as <REASON> <SEVERITY> is always 'e' (error) <COL> is always '0' - ^<FILE>:<ROW>:<REASON>^ <SEVERITY> is always 'e' (error) <COL> is always '0' 2) AIX: Recognized lines are of the format: - ^"<FILE>", line <ROW>.<COL>: <> (<SEVERITY>) <REASON>", 3) HPUX: Recognized lines are of the format: - ^cc: "<FILE>", line <ROW>: <SEVERITY>: <REASON>^ <COL> is always '0' 4) SOLARIS: Recognized lines are of the format: - ^"<FILE>", line <ROW>: warning: <REASON>^ This assumes <SEVERITY> is "W" <COL> is always '0' - ^"<FILE>", line <ROW>: <REASON>^ This assumes <SEVERITY> is "E" <COL> is always '0' 5) ATT / NCR: Recognized lines are of the format: - ^<SEVERITY> "<FILE>",L<ROW>/C<COL><>:<REASON>^ or - ^<SEVERITY> "<FILE>",L<ROW>/C<COL>:<REASON>^ Following lines beginning with a pipe (|) are continuation lines, and are therefore appended to the <REASON> - ^<SEVERITY> "<FILE>",L<ROW>:<REASON>^ <COL> is '0' Following lines beginning with a pipe (|) are continuation lines, and are therefore appended to the <REASON> 6) SGI-IRIX: Recognized lines are of the format: - ^cfe: <SEVERITY>: <FILE>: <ROW>: <REASON>^ or ^cfe: <SEVERITY>: <FILE>, line <ROW>: <REASON>^ Following lines beginning with a dash (-) are "column-bar" that end with a caret in the column of the error. These lines are analyzed to generate the <COL>.