If a Content Security Policy (CSP) directive is defined that uses a hash-based source that takes the empty string as input, execution of any javascript: URIs will be allowed. This could allow for malicious JavaScript content to be run, bypassing CSP permissions. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "firefox", "binary_version": "69.0+build2-0ubuntu0.16.04.4" }, { "binary_name": "firefox-dev", "binary_version": "69.0+build2-0ubuntu0.16.04.4" }, { "binary_name": "firefox-geckodriver", "binary_version": "69.0+build2-0ubuntu0.16.04.4" }, { "binary_name": "firefox-mozsymbols", "binary_version": "69.0+build2-0ubuntu0.16.04.4" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "firefox", "binary_version": "69.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "firefox-dev", "binary_version": "69.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "firefox-geckodriver", "binary_version": "69.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "69.0+build2-0ubuntu0.18.04.1" } ] }