When packets with a mismatched RTP payload type are sent in WebRTC connections, in some circumstances a potentially exploitable crash is triggered. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
www.securityfocus.com/bid/103388
www.securitytracker.com/id/1040514
access.redhat.com/errata/RHSA-2018:0526
access.redhat.com/errata/RHSA-2018:0527
bugzilla.mozilla.org/show_bug.cgi?id=1433005
lists.debian.org/debian-lts-announce/2018/03/msg00010.html
security.gentoo.org/glsa/201810-01
usn.ubuntu.com/3596-1/
www.debian.org/security/2018/dsa-4139
www.mozilla.org/security/advisories/mfsa2018-06/
www.mozilla.org/security/advisories/mfsa2018-07/