The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players value, leading to a buffer overflow. A malicious user can overwrite the server's stack.
{
"binaries": [
{
"binary_version": "2.2.1-2.1",
"binary_name": "chocolate-common"
},
{
"binary_version": "2.2.1-2.1",
"binary_name": "chocolate-doom"
},
{
"binary_version": "2.2.1-2.1",
"binary_name": "chocolate-heretic"
},
{
"binary_version": "2.2.1-2.1",
"binary_name": "chocolate-hexen"
},
{
"binary_version": "2.2.1-2.1",
"binary_name": "chocolate-strife"
}
]
}