A STUN server in conjunction with a large number of "webkitRTCPeerConnection" objects can be used to send large STUN packets in a short period of time due to a lack of rate limiting being applied on e10s systems, allowing for a denial of service attack. This vulnerability affects Firefox < 51.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "51.0.1+build2-0ubuntu0.14.04.1", "binary_name": "firefox" }, { "binary_version": "51.0.1+build2-0ubuntu0.14.04.1", "binary_name": "firefox-dev" }, { "binary_version": "51.0.1+build2-0ubuntu0.14.04.1", "binary_name": "firefox-globalmenu" }, { "binary_version": "51.0.1+build2-0ubuntu0.14.04.1", "binary_name": "firefox-mozsymbols" }, { "binary_version": "51.0.1+build2-0ubuntu0.14.04.1", "binary_name": "firefox-testsuite" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "51.0.1+build2-0ubuntu0.16.04.1", "binary_name": "firefox" }, { "binary_version": "51.0.1+build2-0ubuntu0.16.04.1", "binary_name": "firefox-dev" }, { "binary_version": "51.0.1+build2-0ubuntu0.16.04.1", "binary_name": "firefox-globalmenu" }, { "binary_version": "51.0.1+build2-0ubuntu0.16.04.1", "binary_name": "firefox-mozsymbols" }, { "binary_version": "51.0.1+build2-0ubuntu0.16.04.1", "binary_name": "firefox-testsuite" } ] }