1 files changed, 7 insertions, 7 deletions

diff --git a/src/lib/libssl/src/crypto/asn1/a_time.c b/src/lib/libssl/src/crypto/asn1/a_time.c
index 29d56b827a..080c3dfddb 100644
--- a/src/lib/libssl/src/crypto/asn1/a_time.c
+++ b/src/lib/libssl/src/crypto/asn1/a_time.c
@@ -126,6 +126,7 @@ ASN1_TIME_to_generalizedtime(ASN1_TIME *t, ASN1_GENERALIZEDTIME **out)
         ASN1_GENERALIZEDTIME *ret;
         char *str;
         int newlen;
+        int i;
 
         if (!ASN1_TIME_check(t))
                 return NULL;
@@ -151,13 +152,12 @@ ASN1_TIME_to_generalizedtime(ASN1_TIME *t, ASN1_GENERALIZEDTIME **out)
         /* ASN1_STRING_set() allocated 'len + 1' bytes. */
         newlen = t->length + 2 + 1;
         str = (char *)ret->data;
-        /* Work out the century and prepend */
-        if (t->data[0] >= '5')
-                strlcpy(str, "19", newlen);
-        else
-                strlcpy(str, "20", newlen);
-        strlcat(str, (char *)t->data, newlen);
-
+        i = snprintf(str, newlen, "%s%s", (t->data >= '5') ? "19" : "20",
+            (char *) t->data);
+        if (i == -1 || i >= newlen) {
+                ASN1_STRING_free(ret);
+                return NULL;
+        }
         return ret;
 }