thac0/vim
1
0
Fork 0
forked from aniani/vim
Code Activity

patch 9.0.1873: [security] heap-buffer-overflow in vim_regsub_both

Browse Source 
Problem:  heap-buffer-overflow in vim_regsub_both
Solution: Disallow exchanging windows when textlock is active

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2023-09-05 20:18:06 +02:00
parent d2a08ba0fa
commit f6d28fe2c9
5 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

BIN
src/testdir/crash/vim_regsub_both_poc Normal file
View File

Binary file not shown.

9
src/testdir/test_crash.vim
View File

@@ -46,6 +46,7 @@ func Test_crash1()
let file = 'crash/poc_tagfunc.vim'
let args = printf(cmn_args, vim, file)
" using || because this poc causes vim to exit with exitstatus != 0
call term_sendkeys(buf, args ..
\ ' || echo "crash 5: [OK]" >> X_crash1_result.txt' .. "\<cr>")
@@ -59,6 +60,13 @@ func Test_crash1()
call delete('X')
call TermWait(buf, 3000)
let file = 'crash/vim_regsub_both_poc'
let args = printf(cmn_args, vim, file)
" using || because this poc causes vim to exit with exitstatus != 0
call term_sendkeys(buf, args ..
\ ' && echo "crash 7: [OK]" >> X_crash1_result.txt' .. "\<cr>")
call TermWait(buf, 1000)
" clean up
exe buf .. "bw!"
@@ -71,6 +79,7 @@ func Test_crash1()
\ 'crash 4: [OK]',
\ 'crash 5: [OK]',
\ 'crash 6: [OK]',
\ 'crash 7: [OK]',
\ ]
call assert_equal(expected, getline(1, '$'))