Module: kamailio Branch: 5.1 Commit: 12ddd127343f1be98a4556aadd9ccfeafc3fbdc7 URL: https://github.com/kamailio/kamailio/commit/12ddd127343f1be98a4556aadd9ccfea...

Author: Dmitri Savolainen savolainen@erinaco.ru Committer: Daniel-Constantin Mierla miconda@gmail.com Date: 2018-06-05T11:38:39+02:00

dialog: check CSeq careful with track_cseq_updates

to avoid null pointer access for malformed messages

(cherry picked from commit 59c7bf4f43a8cd5dcb0555835a064d88679956c5)

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Modified: src/modules/dialog/dlg_cseq.c

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Diff: https://github.com/kamailio/kamailio/commit/12ddd127343f1be98a4556aadd9ccfea... Patch: https://github.com/kamailio/kamailio/commit/12ddd127343f1be98a4556aadd9ccfea...

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diff --git a/src/modules/dialog/dlg_cseq.c b/src/modules/dialog/dlg_cseq.c index 1e343c9981..b97e8f7123 100644 --- a/src/modules/dialog/dlg_cseq.c +++ b/src/modules/dialog/dlg_cseq.c @@ -73,7 +73,8 @@ static int dlg_cseq_prepare_msg(sip_msg_t *msg) return 1; }

- if (parse_headers(msg, HDR_CSEQ_F, 0)==-1) { + if((!msg->cseq && (parse_headers(msg,HDR_CSEQ_F,0)<0 || !msg->cseq)) + || !msg->cseq->parsed){ LM_DBG("parsing cseq header failed\n"); return 2; }