bits: fix bit_TV_to_utf8_codepage heap-buffer-overflow

Fixes GH #881
LibreDWG · Nov 29, 2023 · e685e68 · e685e68
1 parent ba6aa54
commit e685e68
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/bits.c b/src/bits.c
@@ -3202,7 +3202,7 @@ bit_TV_to_utf8_codepage (const char *restrict src, const BITCODE_RS codepage)
   if (!codepage)
     return (char *)src;
   //  UTF8 encode
-  while ((c = *tmp) && i < destlen)
+  while (i < destlen && (char*)tmp < &src[srclen] && (c = *tmp))
     {
       wchar_t wc;
       tmp++;