1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libcrypto/asn1/a_mbstr.c b/src/lib/libcrypto/asn1/a_mbstr.c
index e8a26af521..208b3ec395 100644
--- a/src/lib/libcrypto/asn1/a_mbstr.c
+++ b/src/lib/libcrypto/asn1/a_mbstr.c
@@ -145,14 +145,14 @@ int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len,
 
         if((minsize > 0) && (nchar < minsize)) {
                 ASN1err(ASN1_F_ASN1_MBSTRING_COPY, ASN1_R_STRING_TOO_SHORT);
-                sprintf(strbuf, "%ld", minsize);
+                BIO_snprintf(strbuf, sizeof strbuf, "%ld", minsize);
                 ERR_add_error_data(2, "minsize=", strbuf);
                 return -1;
         }
 
         if((maxsize > 0) && (nchar > maxsize)) {
                 ASN1err(ASN1_F_ASN1_MBSTRING_COPY, ASN1_R_STRING_TOO_LONG);
-                sprintf(strbuf, "%ld", maxsize);
+                BIO_snprintf(strbuf, sizeof strbuf, "%ld", maxsize);
                 ERR_add_error_data(2, "maxsize=", strbuf);
                 return -1;
         }