[sr-dev] git:5.2:55f5c820: topoh: improve checks for contact header processing

Module: kamailio Branch: 5.2 Commit: 55f5c820655c3b53863043569f05b97ad615abbc URL: https://github.com/kamailio/kamailio/commit/55f5c820655c3b53863043569f05b97… Author: Henning Westerholt <hw(a)kamailio.org> Committer: Henning Westerholt <hw(a)kamailio.org> Date: 2019-02-25T16:48:02+01:00 topoh: improve checks for contact header processing (cherry picked from commit 101670ac2c120cf0008a860b6a766aaa529e578d) --- Modified: src/modules/topoh/th_msg.c --- Diff: https://github.com/kamailio/kamailio/commit/55f5c820655c3b53863043569f05b97… Patch: https://github.com/kamailio/kamailio/commit/55f5c820655c3b53863043569f05b97… --- diff --git a/src/modules/topoh/th_msg.c b/src/modules/topoh/th_msg.c index a3b6ab5f29..8b8d278b25 100644 --- a/src/modules/topoh/th_msg.c +++ b/src/modules/topoh/th_msg.c @@ -275,6 +275,11 @@ int th_mask_contact(sip_msg_t *msg) } c = ((contact_body_t*)msg->contact->parsed)->contacts; + if(c == NULL) + { + LM_ERR("invalid contact header\n"); + return -1; + } in = c->uri; out.s = th_mask_encode(in.s, in.len, &th_uri_prefix, &out.len);