Mercurial > vim
view src/testdir/test_source_utf8.vim @ 33863:3b8089d550eb v9.0.2141
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Commit: https://github.com/vim/vim/commit/0fb375aae608d7306b4baf9c1f906961f32e2abf
Author: Christian Brabandt <cb@256bit.org>
Date: Wed Nov 29 10:23:39 2023 +0100
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Problem: [security]: buffer-overflow in suggest_trie_walk
Solution: Check n before using it as index into byts array
Basically, n as an index into the byts array, can point to beyond the byts
array. So let's double check, that n is within the expected range after
incrementing it from sp->ts_curi and bail out if it would be invalid.
Reported by @henices, thanks!
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 10 Dec 2023 15:16:03 +0100 |
parents | ae10b91ac6b3 |
children |
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line source
" Test the :source! command source check.vim func Test_source_utf8() " check that sourcing a script with 0x80 as second byte works new call setline(1, [':%s/àx/--à1234--/g', ':%s/Àx/--À1234--/g']) write! Xscript bwipe! new call setline(1, [' àx ', ' Àx ']) source! Xscript | echo call assert_equal(' --à1234-- ', getline(1)) call assert_equal(' --À1234-- ', getline(2)) bwipe! call delete('Xscript') endfunc func Test_source_latin() " check that sourcing a latin1 script with a 0xc0 byte works new call setline(1, ["call feedkeys('r')", "call feedkeys('\xc0', 'xt')"]) write! Xscript bwipe! new call setline(1, ['xxx']) source Xscript call assert_equal("\u00c0xx", getline(1)) bwipe! call delete('Xscript') endfunc " Test for sourcing a file with CTRL-V's at the end of the line func Test_source_ctrl_v() call writefile(['map __1 afirst', \ 'map __2 asecond', \ 'map __3 athird', \ 'map __4 afourth', \ 'map __5 afifth', \ "map __1 asd\<C-V>", \ "map __2 asd\<C-V>\<C-V>", \ "map __3 asd\<C-V>\<C-V>", \ "map __4 asd\<C-V>\<C-V>\<C-V>", \ "map __5 asd\<C-V>\<C-V>\<C-V>", \ ], 'Xtestfile', 'D') source Xtestfile enew! exe "normal __1\<Esc>\<Esc>__2\<Esc>__3\<Esc>\<Esc>__4\<Esc>__5\<Esc>" exe "%s/\<C-J>/0/g" call assert_equal(['sd', \ "map __2 asd\<Esc>secondsd\<Esc>sd0map __5 asd0fifth"], \ getline(1, 2)) enew! unmap __1 unmap __2 unmap __3 unmap __4 unmap __5 endfunc " vim: shiftwidth=2 sts=2 expandtab