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view src/testdir/test_exec_while_if.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 | fb4c30606b4a |
children |
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" Test for :execute, :while, :for and :if func Test_exec_while_if() new let i = 0 while i < 12 let i = i + 1 execute "normal o" . i . "\033" if i % 2 normal Ax if i == 9 break endif if i == 5 continue else let j = 9 while j > 0 execute "normal" j . "a" . j . "\x1b" let j = j - 1 endwhile endif endif if i == 9 execute "normal Az\033" endif endwhile unlet i j call assert_equal(["", \ "1x999999999888888887777777666666555554444333221", \ "2", \ "3x999999999888888887777777666666555554444333221", \ "4", \ "5x", \ "6", \ "7x999999999888888887777777666666555554444333221", \ "8", \ "9x"], getline(1, 10)) endfunc " vim: shiftwidth=2 sts=2 expandtab