Documents formed using data: URLs in an OBJECT element failed to inherit the CSP of the creating context. This allowed the execution of scripts that should have been blocked, albeit with a unique opaque origin. This vulnerability affects Firefox < 76.
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "76.0+build2-0ubuntu0.16.04.1",
"binary_name": "firefox"
},
{
"binary_version": "76.0+build2-0ubuntu0.16.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "76.0+build2-0ubuntu0.16.04.1",
"binary_name": "firefox-geckodriver"
},
{
"binary_version": "76.0+build2-0ubuntu0.16.04.1",
"binary_name": "firefox-mozsymbols"
}
]
}{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "76.0+build2-0ubuntu0.18.04.1",
"binary_name": "firefox"
},
{
"binary_version": "76.0+build2-0ubuntu0.18.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "76.0+build2-0ubuntu0.18.04.1",
"binary_name": "firefox-geckodriver"
},
{
"binary_version": "76.0+build2-0ubuntu0.18.04.1",
"binary_name": "firefox-mozsymbols"
}
]
}{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "76.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox"
},
{
"binary_version": "76.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "76.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox-geckodriver"
},
{
"binary_version": "76.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox-mozsymbols"
}
]
}