From: Olle Johansson <oej@edvina.net>
Date: Sun, 18 Mar 2007 20:37:06 +0000 (+0000)
Subject: Issue #9313, Asterisk crash on SIP return code 0 (reported by qwerty1979) (ASA-2007... 
X-Git-Tag: 1.4.2~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=156c1781438677057a51c11ac328d93240fb7fdf;p=thirdparty%2Fasterisk.git

Issue #9313, Asterisk crash on SIP return code 0 (reported by qwerty1979) (ASA-2007-011)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@59037 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 3e11aee05c..e925e5dbca 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -14612,6 +14612,10 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
 		if (sscanf(e, "%d %n", &respid, &len) != 1) {
 			ast_log(LOG_WARNING, "Invalid response: '%s'\n", e);
 		} else {
+			if (respid <= 0) {
+				ast_log(LOG_WARNING, "Invalid SIP response code: '%d'\n", respid);
+				return 0;
+			}
 			/* More SIP ridiculousness, we have to ignore bogus contacts in 100 etc responses */
 			if ((respid == 200) || ((respid >= 300) && (respid <= 399)))
 				extract_uri(p, req);