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chan_sip/sdp_crypto.c: allow SDP crypto tag to be up to 9 digits

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ASTERISK-24887 #close
Reported by: Makoto Dei
Tested by: tensai

Change-Id: I6a96f572adb17f76b3acafe503a01c48eb5dd9bf
This commit is contained in:
Corey Edwards
2015-05-20 13:45:37 -06:00
parent cf1190cc6b
commit 2d297c7b9a
1 changed files with 2 additions and 1 deletions
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3
channels/sip/sdp_crypto.c
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@@ -220,7 +220,8 @@ int sdp_crypto_process(struct sdp_crypto *p, const char *attr, struct ast_rtp_in
return -1;
}
if (sscanf(tag, "%30d", &p->tag) != 1 || p->tag <= 0 || p->tag > 9) {
/* RFC4568 9.1 - tag is 1-9 digits, greater than zero */
if (sscanf(tag, "%30d", &p->tag) != 1 || p->tag <= 0 || p->tag > 999999999) {
ast_log(LOG_WARNING, "Unacceptable a=crypto tag: %s\n", tag);
return -1;
}