1 files changed, 3 insertions, 2 deletions

diff --git a/src/lib/libcrypto/mem.c b/src/lib/libcrypto/mem.c
index 6f80dd33eb..8f06d190a1 100644
--- a/src/lib/libcrypto/mem.c
+++ b/src/lib/libcrypto/mem.c
@@ -324,9 +324,10 @@ void *CRYPTO_malloc(int num, const char *file, int line)
         }
 char *CRYPTO_strdup(const char *str, const char *file, int line)
         {
-        char *ret = CRYPTO_malloc(strlen(str)+1, file, line);
+        size_t len = strlen(str)+1;
+        char *ret = CRYPTO_malloc(len, file, line);
 
-        strcpy(ret, str);
+        memcpy(ret, str, len);
         return ret;
         }