1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/x509/t_req.c b/crypto/x509/t_req.c
index 77ce810835..3207dfaccc 100644
--- a/crypto/x509/t_req.c
+++ b/crypto/x509/t_req.c
@@ -125,6 +125,10 @@ int X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflags,
                 if ((j = i2a_ASN1_OBJECT(bp, aobj)) > 0) {
                     ii = 0;
                     count = X509_ATTRIBUTE_count(a);
+                    if (count == 0) {
+                        X509err(X509_F_X509_REQ_PRINT_EX, X509_R_INVALID_ATTRIBUTES);
+                        return 0;
+                    }
  get_next:
                     at = X509_ATTRIBUTE_get0_type(a, ii);
                     type = at->type;