Fix:heap overflow in ntlmv2_hash()

Author: jjnicola

nasl/nasl_snmp.c

@@ -419,19 +419,19 @@ check_spwan_output (int fd, snmp_result_t result, int fd_flag)
   while (1)
     {
       char buf[4096];
-      size_t bytes;
+      ssize_t bytes;
 
       bytes = read (fd, buf, sizeof (buf));
-      if (!bytes)
-        break;
-      else if (bytes > 0)
-        g_string_append_len (string, buf, bytes);
-      else
+      if (bytes < 0)
         {
           g_warning ("snmpget: %s", strerror (errno));
           g_string_free (string, TRUE);
           return -1;
         }
+      if (!bytes)
+        break;
+      else if (bytes > 0)
+        g_string_append_len (string, buf, bytes);
     }
 
   // Split the result and store the oid and name

nasl/smb_signing.c

@@ -18,11 +18,13 @@
 */
 
 #include "smb_signing.h"
+
 #include <stdint.h>
 
 int
-simple_packet_signature_ntlmssp (uint8_t *mac_key, const uchar *buf, size_t buf_len,
-                                 uint32 seq_number, unsigned char *calc_md5_mac)
+simple_packet_signature_ntlmssp (uint8_t *mac_key, const uchar *buf,
+                                 size_t buf_len, uint32 seq_number,
+                                 unsigned char *calc_md5_mac)
 {
   const size_t offset_end_of_sig = (smb_ss_field + 8);
   unsigned char sequence_buf[8];