Limitations on the URIs allowed to WebExtensions by the browser.windows.create API can be bypassed when a pipe in the URL field is used within the extension to load multiple pages as a single argument. This could allow a malicious WebExtension to open privileged about: or file: locations. This vulnerability affects Firefox < 64.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "64.0+build3-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-dev",
"binary_version": "64.0+build3-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-globalmenu",
"binary_version": "64.0+build3-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "64.0+build3-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-testsuite",
"binary_version": "64.0+build3-0ubuntu0.14.04.1"
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "64.0+build3-0ubuntu0.16.04.1"
},
{
"binary_name": "firefox-dev",
"binary_version": "64.0+build3-0ubuntu0.16.04.1"
},
{
"binary_name": "firefox-globalmenu",
"binary_version": "64.0+build3-0ubuntu0.16.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "64.0+build3-0ubuntu0.16.04.1"
},
{
"binary_name": "firefox-testsuite",
"binary_version": "64.0+build3-0ubuntu0.16.04.1"
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "64.0+build3-0ubuntu0.18.04.1"
},
{
"binary_name": "firefox-dev",
"binary_version": "64.0+build3-0ubuntu0.18.04.1"
},
{
"binary_name": "firefox-globalmenu",
"binary_version": "64.0+build3-0ubuntu0.18.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "64.0+build3-0ubuntu0.18.04.1"
},
{
"binary_name": "firefox-testsuite",
"binary_version": "64.0+build3-0ubuntu0.18.04.1"
}
]
}