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Cisco Bug: CSCvv15313 - CUBE shouldn't crash when receiving an REINVITE with stun parameters and "stun" is not configured

Last Modified

Aug 06, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.12.4

Description (partial)

Symptom:
1. REINVITE with SDP with STUN candidates
2. STUN configuration is absent

Conditions:
Just send an INVITE with SDP with the following:

b=AS:11
t=0 0
a=X-nat:0
m=audio 56606 RTP/AVP 18 101
a=ssrc:584934170 cname:26b348331a0749be
a=rtpmap:18 G729/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=candidate:Pac106580 1 UDP 1862270975 10.65.95.41 56606 typ prflx raddr 172.16.101.128 rport 4006
a=candidate:Pac106580 2 UDP 1862270974 10.65.95.41 56480 typ prflx raddr 172.16.101.128 rport 4005
a=remote-candidates:1 10.64.86.47 8000 2 10.64.86.47 8001
a=ice-ufrag:4ae13d6c
a=ice-pwd:2cd672ae69525f9016496df1
a=rtcp:56480 IN IP4 10.65.95.41

The stun is not configured.
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