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CVE-2016-0772

CVE information

Published

5 years ago

Last Modified

3 years ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

Description

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.".

CVSSv2.0 Score

Severity
Medium
Base Score
5.8/10
Exploit Score
8.6/10
Access Vector
Network
Access Complexity
Medium
Authentication Required
None
Impact Score
4.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
Partial

CVSSv3.1 Score

Severity
Medium
Base Score
6.5/10
Exploit Score
2.2/10
Access Vector
Network
Access Complexity
High
Privileges Required
None
Impact Score
4.2/10
Confidentiality Impact
Low
Availability Impact
None
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:python:python:3.5.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.5.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.5:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:3.4.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
  Yes
- -