From: Pekka Riikonen <priikone@silcnet.org>
Date: Tue, 3 Dec 2002 17:53:08 +0000 (+0000)
Subject: 	Fixed buffer overflow.
X-Git-Tag: silc.client.0.9.10~22
X-Git-Url: http://git.silcnet.org/gitweb/?a=commitdiff_plain;h=5aa9c27fb899e19b32b7053c205d90edf2c1c04a;p=silc.git

	Fixed buffer overflow.
---

diff --git a/lib/silccore/silcmessage.c b/lib/silccore/silcmessage.c
index 555e0cae..66bd1b98 100644
--- a/lib/silccore/silcmessage.c
+++ b/lib/silccore/silcmessage.c
@@ -114,20 +114,20 @@ bool silc_message_payload_decrypt(unsigned char *data,
   SILC_GET16_MSB(len, dec + totlen);
   totlen += 2 + len;
   if (totlen + iv_len + mac_len + 2 > data_len) {
-    memset(dec, 0, data_len);
+    memset(dec, 0, data_len - iv_len - mac_len);
     silc_free(dec);
     return FALSE;
   }
   SILC_GET16_MSB(len, dec + totlen);
   totlen += 2 + len;
   if (totlen + iv_len + mac_len > data_len) {
-    memset(dec, 0, data_len);
+    memset(dec, 0, data_len - iv_len - mac_len);
     silc_free(dec);
     return FALSE;
   }
 
   memcpy(data, dec, totlen);
-  memset(dec, 0, data_len);
+  memset(dec, 0, data_len - iv_len - mac_len);
   silc_free(dec);
 
   return TRUE;