--- /dev/null
+diff -Naur ppp-2.4.4.orig/pppd/chap_ms.c ppp-2.4.4/pppd/chap_ms.c
+--- ppp-2.4.4.orig/pppd/chap_ms.c 2006-05-21 07:56:40.000000000 -0400
++++ ppp-2.4.4/pppd/chap_ms.c 2009-05-07 16:13:09.000000000 -0400
+@@ -852,7 +852,7 @@
+ u_char *p = &response[MS_CHAP2_PEER_CHALLENGE];
+ int i;
+
+- BZERO(response, sizeof(*response));
++ BZERO(response, MS_CHAP2_RESPONSE_LEN);
+
+ /* Generate the Peer-Challenge if requested, or copy it if supplied. */
+ if (!PeerChallenge)
+diff -Naur ppp-2.4.4.orig/pppd/chap_ms.c ppp-2.4.4/pppd/chap_ms.c
+--- ppp-2.4.4.orig/pppd/chap_ms.c 2006-05-21 07:56:40.000000000 -0400
++++ ppp-2.4.4/pppd/chap_ms.c 2009-05-07 16:13:09.000000000 -0400
+@@ -852,7 +852,7 @@
+ u_char *p = &response[MS_CHAP2_PEER_CHALLENGE];
+ int i;
+
+- BZERO(response, sizeof(*response));
++ BZERO(response, MS_CHAP2_RESPONSE_LEN);
+
+ /* Generate the Peer-Challenge if requested, or copy it if supplied. */
+ if (!PeerChallenge)