Mozilla Firefox before 48.0 does not properly set the LINKABLE and URISAFEFORUNTRUSTEDCONTENT flags of about: URLs that are used for error pages, which makes it easier for remote attackers to conduct spoofing attacks via a crafted URL, as demonstrated by misleading text after an about:neterror?d= substring.
{ "binaries": [ { "binary_version": "48.0+build2-0ubuntu0.14.04.1", "binary_name": "firefox" }, { "binary_version": "48.0+build2-0ubuntu0.14.04.1", "binary_name": "firefox-dev" }, { "binary_version": "48.0+build2-0ubuntu0.14.04.1", "binary_name": "firefox-globalmenu" }, { "binary_version": "48.0+build2-0ubuntu0.14.04.1", "binary_name": "firefox-mozsymbols" }, { "binary_version": "48.0+build2-0ubuntu0.14.04.1", "binary_name": "firefox-testsuite" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "48.0+build2-0ubuntu0.16.04.1", "binary_name": "firefox" }, { "binary_version": "48.0+build2-0ubuntu0.16.04.1", "binary_name": "firefox-dev" }, { "binary_version": "48.0+build2-0ubuntu0.16.04.1", "binary_name": "firefox-globalmenu" }, { "binary_version": "48.0+build2-0ubuntu0.16.04.1", "binary_name": "firefox-mozsymbols" }, { "binary_version": "48.0+build2-0ubuntu0.16.04.1", "binary_name": "firefox-testsuite" } ], "availability": "No subscription required" }