Response header name interning does not have same-origin protections and these headers are stored in a global registry. This allows stored header names to be available cross-origin. This vulnerability affects Firefox < 55.
{ "binaries": [ { "binary_name": "firefox", "binary_version": "55.0.1+build2-0ubuntu0.14.04.2" }, { "binary_name": "firefox-dev", "binary_version": "55.0.1+build2-0ubuntu0.14.04.2" }, { "binary_name": "firefox-globalmenu", "binary_version": "55.0.1+build2-0ubuntu0.14.04.2" }, { "binary_name": "firefox-mozsymbols", "binary_version": "55.0.1+build2-0ubuntu0.14.04.2" }, { "binary_name": "firefox-testsuite", "binary_version": "55.0.1+build2-0ubuntu0.14.04.2" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "55.0.1+build2-0ubuntu0.16.04.2" }, { "binary_name": "firefox-dev", "binary_version": "55.0.1+build2-0ubuntu0.16.04.2" }, { "binary_name": "firefox-globalmenu", "binary_version": "55.0.1+build2-0ubuntu0.16.04.2" }, { "binary_name": "firefox-mozsymbols", "binary_version": "55.0.1+build2-0ubuntu0.16.04.2" }, { "binary_name": "firefox-testsuite", "binary_version": "55.0.1+build2-0ubuntu0.16.04.2" } ], "availability": "No subscription required" }