Mercurial > vim
view runtime/syntax/mailcap.vim @ 33776:9503dc55b5ed v9.0.2108
patch 9.0.2108: [security]: overflow with count for :s command
Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 14 20:45:48 2023 +0100
patch 9.0.2108: [security]: overflow with count for :s command
Problem: [security]: overflow with count for :s command
Solution: Abort the :s command if the count is too large
If the count after the :s command is larger than what fits into a
(signed) long variable, abort with e_value_too_large.
Adds a test with INT_MAX as count and verify it correctly fails.
It seems the return value on Windows using mingw compiler wraps around,
so the initial test using :s/./b/9999999999999999999999999990 doesn't
fail there, since the count is wrapping around several times and finally
is no longer larger than 2147483647. So let's just use 2147483647 in the
test, which hopefully will always cause a failure
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 16 Nov 2023 22:15:10 +0100 |
parents | 42bf9264e64e |
children |
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" Vim syntax file " Language: Mailcap configuration file " Maintainer: Doug Kearns <dougkearns@gmail.com> " Last Change: 2013 Jun 01 if exists("b:current_syntax") finish endif syn match mailcapComment "^#.*" syn region mailcapString start=+"+ end=+"+ contains=mailcapSpecial oneline syn match mailcapDelimiter "\\\@<!;" syn match mailcapSpecial "\\\@<!%[nstF]" syn match mailcapSpecial "\\\@<!%{[^}]*}" syn case ignore syn match mailcapFlag "\(=\s*\)\@<!\<\(needsterminal\|copiousoutput\|x-\w\+\)\>" syn match mailcapFieldname "\<\(compose\|composetyped\|print\|edit\|test\|x11-bitmap\|nametemplate\|textualnewlines\|description\|x-\w+\)\>\ze\s*=" syn match mailcapTypeField "^\(text\|image\|audio\|video\|application\|message\|multipart\|model\|x-[[:graph:]]\+\)\(/\(\*\|[[:graph:]]\+\)\)\=\ze\s*;" syn case match hi def link mailcapComment Comment hi def link mailcapDelimiter Delimiter hi def link mailcapFlag Statement hi def link mailcapFieldname Statement hi def link mailcapSpecial Identifier hi def link mailcapTypeField Type hi def link mailcapString String let b:current_syntax = "mailcap" " vim: ts=8