1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/libcrypto/buffer/buffer.c b/src/lib/libcrypto/buffer/buffer.c
index b76ff3ad7a..9299baba9e 100644
--- a/src/lib/libcrypto/buffer/buffer.c
+++ b/src/lib/libcrypto/buffer/buffer.c
@@ -118,8 +118,9 @@ int BUF_MEM_grow(BUF_MEM *str, int len)
         else
                 {
                 str->data=ret;
-                str->length=len;
                 str->max=n;
+                memset(&str->data[str->length],0,len-str->length);
+                str->length=len;
                 }
         return(len);
         }