Simple Desktop Display Manager (SDDM) before 0.10.0 allows local users to log in as user "sddm" without authentication.
{
"binaries": [
{
"binary_name": "sddm",
"binary_version": "0.13.0-1ubuntu5"
},
{
"binary_name": "sddm-dbg",
"binary_version": "0.13.0-1ubuntu5"
},
{
"binary_name": "sddm-dbgsym",
"binary_version": "0.13.0-1ubuntu5"
},
{
"binary_name": "sddm-theme-circles",
"binary_version": "0.13.0-1ubuntu5"
},
{
"binary_name": "sddm-theme-elarun",
"binary_version": "0.13.0-1ubuntu5"
},
{
"binary_name": "sddm-theme-maldives",
"binary_version": "0.13.0-1ubuntu5"
},
{
"binary_name": "sddm-theme-maui",
"binary_version": "0.13.0-1ubuntu5"
}
],
"availability": "No subscription required"
}