[asterisk-bugs] [Asterisk 0017976]: Asterisk Crash on RTCP package in SRTP mode

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17976 
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Reported By:                bernhards
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17976
Category:                   Resources/res_srtp
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
JIRA:                       SWP-2196 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): 1.8 
SVN Revision (number only!): 285988 
Request Review:              
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Date Submitted:             2010-09-10 01:52 CDT
Last Modified:              2011-02-09 09:40 CST
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Summary:                    Asterisk Crash on RTCP package in SRTP mode
Description: 
"snom360-SIP 8.4.18 42570" connected to Asterisk with TLS. snom makes an
outbound call to another phone (without srtp). Other telephone does ring -
then Asterisk does crash. 

libsrtp version 1.4.4. was used - without a change.
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 (0131732) bbeers (reporter) - 2011-02-09 09:40
 https://issues.asterisk.org/view.php?id=17976#c131732 
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I have a similar issue, but I did not get Asterisk crash, just call
hangup.
My problem occurs with Asterisk 1.8.0-beta2 and libsrtp-1.4.4.  The other
end is Avaya Aura AS5300 13.0.0.4.
TEO TSG-6 <-LAN-> Asterisk <-WAN-> Avaya <-???-> ???
No, I don't have a wireshark trace, but I have it on my todo list.
I worked-around the issue by patching res_srtp.c to ignore RTCP packets if
SRTP was active.  Then calls would stay up.  
I don't recommend the patch, but I'll attach it to help developers isolate
the issue. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-02-09 09:40 bbeers         Note Added: 0131732                          
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