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CVE-2022-2285: patch 9.0.0018: going over the end of the typahead · vim/vim@27efc62
Integer Overflow or Wraparound in GitHub repository vim/vim prior to 9.0.
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patch 9.0.0018: going over the end of the typahead
Problem: Going over the end of the typahead. Solution: Put a NUL after the typeahead.
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1 parent 3d51ce1 commit 27efc62f5d86afcb2ecb7565587fe8dea4b036fe
Showing 3 changed files with 13 additions and 0 deletions.
- term.c
- test_mapping.vim
- version.c
@@ -5393,6 +5393,7 @@ check_termcode(
if (*tp == ESC && !p_ek && (State & MODE_INSERT))
continue;
tp[len] = NUL;
key_name[0] = NUL; // no key name found yet
key_name[1] = NUL; // no key name found yet
modifiers = 0; // no modifiers yet
@@ -1715,4 +1715,14 @@ func Test_map_after_timed_out_nop()
call delete(‘Xtest_map_after_timed_out_nop’)
endfunc
func Test_using_past_typeahead()
nnoremap :00 0
exe “norm :set \x80\xfb0=0\<CR>”
exe “sil norm :0\x0f\<C-U>\<CR>”
exe “norm :set \x80\xfb0=\<CR>”
nunmap :00
endfunc
" vim: shiftwidth=2 sts=2 expandtab
@@ -735,6 +735,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
18,
/**/
17,
/**/
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