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| author | zeertzjq <zeertzjq@outlook.com> | 2023-12-02 10:17:43 +0800 |
|---|---|---|
| committer | zeertzjq <zeertzjq@outlook.com> | 2023-12-02 10:41:31 +0800 |
| commit | 9d7544ac4cd553c9b7c8b41926b7292c5ee85943 (patch) | |
| tree | 492b01ed1fed314cf279bb84857db1527be91d19 /runtime/lua/vim/iter.lua | |
| parent | 9cc346119bee505e0be3827b35c573701a307001 (diff) | |
| download | rneovim-9d7544ac4cd553c9b7c8b41926b7292c5ee85943.tar.gz rneovim-9d7544ac4cd553c9b7c8b41926b7292c5ee85943.tar.bz2 rneovim-9d7544ac4cd553c9b7c8b41926b7292c5ee85943.zip | |
vim-patch:9.0.2143: [security]: buffer-overflow in ex_substitute
Problem: [security]: buffer-overflow in ex_substitute
Solution: clear memory after allocating
When allocating the new_start pointer in ex_substitute() the memory
pointer points to some garbage that the following for loop in
ex_cmds.c:4743 confuses and causes it to accessing the new_start pointer
beyond it's size, leading to a buffer-overlow.
So fix this by using alloc_clear() instead of alloc(), which will
clear the memory by NUL and therefore cause the loop to terminate
correctly.
Reported by @henices, thanks!
closes: vim/vim#13596
https://github.com/vim/vim/commit/abfa13ebe92d81aaf66669c428d767847b577453
Co-authored-by: Christian Brabandt <cb@256bit.org>
Diffstat (limited to 'runtime/lua/vim/iter.lua')
0 files changed, 0 insertions, 0 deletions