If the "app.support.baseURL" preference is changed by a malicious local program to contain HTML and script content, this content is not sanitized. It will be executed if a user loads "chrome://browser/content/preferences/in-content/preferences.xul" directly in a tab and executes a search. This stored preference is also executed whenever an EME video player plugin displays a CDM-disabled message as a notification message. This vulnerability affects Firefox < 59.
{
"binaries": [
{
"binary_version": "59.0+build5-0ubuntu0.14.04.1",
"binary_name": "firefox"
},
{
"binary_version": "59.0+build5-0ubuntu0.14.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "59.0+build5-0ubuntu0.14.04.1",
"binary_name": "firefox-globalmenu"
},
{
"binary_version": "59.0+build5-0ubuntu0.14.04.1",
"binary_name": "firefox-mozsymbols"
},
{
"binary_version": "59.0+build5-0ubuntu0.14.04.1",
"binary_name": "firefox-testsuite"
}
],
"availability": "No subscription required"
}
{
"binaries": [
{
"binary_version": "59.0+build5-0ubuntu0.16.04.1",
"binary_name": "firefox"
},
{
"binary_version": "59.0+build5-0ubuntu0.16.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "59.0+build5-0ubuntu0.16.04.1",
"binary_name": "firefox-globalmenu"
},
{
"binary_version": "59.0+build5-0ubuntu0.16.04.1",
"binary_name": "firefox-mozsymbols"
},
{
"binary_version": "59.0+build5-0ubuntu0.16.04.1",
"binary_name": "firefox-testsuite"
}
],
"availability": "No subscription required"
}
{
"binaries": [
{
"binary_version": "59.0.1+build1-0ubuntu1",
"binary_name": "firefox"
},
{
"binary_version": "59.0.1+build1-0ubuntu1",
"binary_name": "firefox-dev"
},
{
"binary_version": "59.0.1+build1-0ubuntu1",
"binary_name": "firefox-globalmenu"
},
{
"binary_version": "59.0.1+build1-0ubuntu1",
"binary_name": "firefox-mozsymbols"
},
{
"binary_version": "59.0.1+build1-0ubuntu1",
"binary_name": "firefox-testsuite"
}
],
"availability": "No subscription required"
}