X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=lib%2Fsilccore%2Fsilcid.c;h=6e892c087b2a8dedb675bbf4206408873fe48637;hb=c1ad9c3e8978b0e1537b5bbdf89e385029429516;hp=6a7fb8f2c72c38c20902cd95f137045b61b32c00;hpb=9734af565c9da0fdf77fd93283d7adcd8eb34b80;p=silc.git

diff --git a/lib/silccore/silcid.c b/lib/silccore/silcid.c
index 6a7fb8f2..6e892c08 100644
--- a/lib/silccore/silcid.c
+++ b/lib/silccore/silcid.c
@@ -62,6 +62,9 @@ SilcIDPayload silc_id_payload_parse(const unsigned char *payload,
   if (ret == -1)
     goto err;
 
+  if (newp->type > SILC_ID_CHANNEL)
+    goto err;
+
   silc_buffer_pull(&buffer, 4);
 
   if (newp->len > buffer.len || newp->len > SILC_PACKET_MAX_ID_LEN)
@@ -102,6 +105,9 @@ void *silc_id_payload_parse_id(const unsigned char *data, SilcUInt32 len,
   if (ret == -1)
     return NULL;
 
+  if (type > SILC_ID_CHANNEL)
+    return NULL;
+
   silc_buffer_pull(&buffer, 4);
 
   if (idlen > buffer.len || idlen > SILC_PACKET_MAX_ID_LEN)
@@ -209,6 +215,9 @@ unsigned char *silc_id_id2str(const void *id, SilcIdType type)
   SilcChannelID *channel_id;
   SilcUInt32 id_len = silc_id_get_len(id, type);
 
+  if (id_len > SILC_PACKET_MAX_ID_LEN)
+    return NULL;
+
   switch(type) {
   case SILC_ID_SERVER:
     server_id = (SilcServerID *)id;
@@ -251,6 +260,8 @@ unsigned char *silc_id_id2str(const void *id, SilcIdType type)
 void *silc_id_str2id(const unsigned char *id, SilcUInt32 id_len, 
 		     SilcIdType type)
 {
+  if (id_len > SILC_PACKET_MAX_ID_LEN)
+    return NULL;
 
   switch(type) {
   case SILC_ID_SERVER: