1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/libssl/bs_cbb.c b/src/lib/libssl/bs_cbb.c
index 16e17fb70f..d11da853cd 100644
--- a/src/lib/libssl/bs_cbb.c
+++ b/src/lib/libssl/bs_cbb.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: bs_cbb.c,v 1.21 2020/03/12 17:17:12 jsing Exp $       */
+/*      $OpenBSD: bs_cbb.c,v 1.22 2020/03/13 15:54:34 jsing Exp $       */
 /*
  * Copyright (c) 2014, Google Inc.
  *
@@ -374,6 +374,7 @@ CBB_add_space(CBB *cbb, uint8_t **out_data, size_t len)
         if (!CBB_flush(cbb) || !cbb_buffer_add(cbb->base, out_data, len))
                 return 0;
 
+        memset(*out_data, 0, len);
         return 1;
 }