A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "thunderbird",
"binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
},
{
"binary_name": "thunderbird-dev",
"binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
},
{
"binary_name": "thunderbird-gnome-support",
"binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
},
{
"binary_name": "thunderbird-mozsymbols",
"binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
},
{
"binary_name": "xul-ext-calendar-timezones",
"binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
},
{
"binary_name": "xul-ext-gdata-provider",
"binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
},
{
"binary_name": "xul-ext-lightning",
"binary_version": "1:140.7.1+build1-0ubuntu0.22.04.1"
}
]
}