The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."
{
"unresolved_ranges": [
{
"cpe": "cpe:2.3:a:python:python:3.1.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "3.1.0"
}
],
"source": "CPE_FIELD"
},
{
"cpe": "cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "3.2.0"
}
],
"source": "CPE_FIELD"
}
]
}{
"cpe": [
"cpe:2.3:a:python:python:3.5.0:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.5.1:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.3.3:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.3.4:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.3.5:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.3.6:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.4.0:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.4.2:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.4.3:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:3.4.4:*:*:*:*:*:*:*",
"cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "3.5.0"
},
{
"last_affected": "3.5.1"
},
{
"last_affected": "3.0"
},
{
"last_affected": "3.0.1"
},
{
"last_affected": "3.1.1"
},
{
"last_affected": "3.1.2"
},
{
"last_affected": "3.1.3"
},
{
"last_affected": "3.1.4"
},
{
"last_affected": "3.1.5"
},
{
"last_affected": "3.2.1"
},
{
"last_affected": "3.2.2"
},
{
"last_affected": "3.2.3"
},
{
"last_affected": "3.2.4"
},
{
"last_affected": "3.2.5"
},
{
"last_affected": "3.2.6"
},
{
"last_affected": "3.3.0"
},
{
"last_affected": "3.3.1"
},
{
"last_affected": "3.3.2"
},
{
"last_affected": "3.3.3"
},
{
"last_affected": "3.3.4"
},
{
"last_affected": "3.3.5"
},
{
"last_affected": "3.3.6"
},
{
"last_affected": "3.4.0"
},
{
"last_affected": "3.4.1"
},
{
"last_affected": "3.4.2"
},
{
"last_affected": "3.4.3"
},
{
"last_affected": "3.4.4"
},
{
"last_affected": "2.7.11"
}
],
"source": "CPE_FIELD"
}