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main/sdp_srtp.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
2015-05-19 12:01:36 -06:00
parent f9114179e6
commit 17d6ede337
1 changed files with 2 additions and 1 deletions
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3
main/sdp_srtp.c
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@@ -238,7 +238,8 @@ int ast_sdp_crypto_process(struct ast_rtp_instance *rtp, struct ast_sdp_srtp *sr
return -1;
}
if (sscanf(tag, "%30d", &crypto->tag) != 1 || crypto->tag <= 0 || crypto->tag > 9) {
/* RFC4568 9.1 - tag is 1-9 digits, greater than zero */
if (sscanf(tag, "%30d", &crypto->tag) != 1 || crypto->tag <= 0 || crypto->tag > 999999999) {
ast_log(LOG_WARNING, "Unacceptable a=crypto tag: %s\n", tag);
return -1;
}