A flaw was found in Samba. Some SMB1 write requests were not correctly range-checked to ensure the client had sent enough data to fulfill the write, allowing server memory contents to be written into the file (or printer) instead of client-supplied data. The client cannot control the area of the server memory written to the file (or printer).
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "4.14.14"
},
{
"introduced": "4.15.0"
},
{
"fixed": "4.15.9"
},
{
"introduced": "4.16.0"
},
{
"fixed": "4.16.4"
}
]
}