All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).
{
"versions": [
{
"introduced": "4.9.0"
},
{
"fixed": "4.9.18"
},
{
"introduced": "4.10.0"
},
{
"fixed": "4.10.12"
},
{
"introduced": "4.11.0"
},
{
"fixed": "4.11.5"
},
{
"introduced": "0"
},
{
"last_affected": "3.0"
},
{
"introduced": "0"
},
{
"last_affected": "1.2"
}
]
}[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "30"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "31"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "16.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "19.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "19.10"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "6.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-14907.json"