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Diffstat (limited to 'src/lib/protocols/kerberos.c')
-rw-r--r--src/lib/protocols/kerberos.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/src/lib/protocols/kerberos.c b/src/lib/protocols/kerberos.c
index 98aa91a51..f4c1a175a 100644
--- a/src/lib/protocols/kerberos.c
+++ b/src/lib/protocols/kerberos.c
@@ -202,11 +202,13 @@ void ndpi_search_kerberos(struct ndpi_detection_module_struct *ndpi_struct,
if(body_offset < packet->payload_packet_len) {
- u_int16_t name_offset;
-
- name_offset = body_offset + 13;
- for(i=0; i<20; i++) if(packet->payload[name_offset] != 0x1b) name_offset++; /* ASN.1 */
-
+ u_int16_t name_offset = body_offset + 13;
+
+ for(i=0; (i<20) && (name_offset < packet->payload_packet_len); i++) {
+ if(packet->payload[name_offset] != 0x1b)
+ name_offset++; /* ASN.1 */
+ }
+
#ifdef KERBEROS_DEBUG
printf("name_offset=%u [%02X %02X] [byte 0 must be 0x1b]\n", name_offset, packet->payload[name_offset], packet->payload[name_offset+1]);
#endif