[asterisk-bugs] [JIRA] (ASTERISK-24925) Crash within pjprojects(libpjnath) pj_stun_session_on_rx_pkt

[Stefan Engström (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-24925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Engström updated ASTERISK-24925:
---------------------------------------

    Attachment: crash-coredump-with-debuginfo-toupload

Finally got another crash... I took a quick look at pjnath's stun_session.c it looks like in all versions of pjprojects (2.2,2.3,2.4), in function check_cached_response they do a  while (t != &sess->cached_response_list) { ... } where t is not tested for NULL. adding t && in the while-condition might have prevented this crash?

> Crash within pjprojects(libpjnath) pj_stun_session_on_rx_pkt
> ------------------------------------------------------------
>
>                 Key: ASTERISK-24925
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24925
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_pjsip, pjproject/pjsip
>    Affects Versions: 13.1.0
>         Environment: pjprojects version 2.2, asterisk version 13.1.0, OS is 64 bit fedora 20.
>            Reporter: Stefan Engström
>            Assignee: Stefan Engström
>         Attachments: crash-coredump-with-debuginfo-toupload, webrtcstundebug.pdf, wiresharksnapshotstunburst.PNG
>
>
> Not yet reproducable. The use-case is a dial to a webrtc-peer, that is a chan_sip peer with transport wss and icesupport=yes.
> Will try to debug this issue myself first, and add more data  continuously.



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