Michael Maier created ASTERISK-27061:
----------------------------------------
Summary: sigseg during t.38 reinvite / negotiation
Key: ASTERISK-27061
URL: https://issues.asterisk.org/jira/browse/ASTERISK-27061
Project: Asterisk
Issue Type: Bug
Security Level: None
Affects Versions: 13.16.0
Environment: Centos 6, 64 bit
Reporter: Michael Maier
sigseg happens during sending of a fax / t.38 the following way:
fax client -> asterisk -> telekom -> easybell -> asterisk -> fax server
Fax server sends t.38 reinvite via asterisk to easybell.
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): - 2447581897 4 IN IP4 46.17.15.23
Session Name (s): Asterisk
Connection Information (c): IN IP4 46.17.15.23
Time Description, active time (t): 0 0
Media Description, name and address (m): image 4573 udptl t38
Media Attribute (a): T38FaxVersion:0
Media Attribute (a): T38MaxBitRate:14400
Media Attribute (a): T38FaxRateManagement:transferredTCF
Media Attribute (a): T38FaxMaxDatagram:397
Media Attribute (a): T38FaxUdpEC:t38UDPRedundancy
This reinvite is received by asterisk via telekom:
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): - 1811299599 2925027276 IN IP4 0.0.0.0
Session Name (s): -
Time Description, active time (t): 0 0
Media Description, name and address (m): image 0 udptl t38
Media Attribute (a): sendrecv
Media Attribute (a): T38FaxVersion:0
Media Attribute (a): T38MaxBitRate:14400
Media Attribute (a): T38FaxRateManagement:transferredTCF
Media Attribute (a): T38FaxMaxDatagram:397
Media Attribute (a): T38FaxUdpEC:t38UDPRedundancy
And asterisk gives it to the fax client:
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): - 1497774025 5 IN IP4 192.168.12.13
Session Name (s): Asterisk
Connection Information (c): IN IP4 192.168.12.13
Time Description, active time (t): 0 0
Media Description, name and address (m): image 4284 udptl t38
Media Attribute (a): T38FaxVersion:0
Media Attribute (a): T38MaxBitRate:14400
Media Attribute (a): T38FaxRateManagement:transferredTCF
Media Attribute (a): T38FaxMaxDatagram:393
Media Attribute (a): T38FaxUdpEC:t38UDPRedundancy
Completely ignoring, that telekom doesn't support it (port and ip
addresses are set to 0).
On completing the negotiation after 200 ok SDP and ACK from fax client,
asterisk crashes. Stack trace and asterisk log is attached!
--
This message was sent by Atlassian JIRA
(v6.2#6252)