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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2016-0772 Detail

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."


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html CVE, Inc., Red Hat
http://rhn.redhat.com/errata/RHSA-2016-1626.html CVE, Inc., Red Hat
http://rhn.redhat.com/errata/RHSA-2016-1627.html CVE, Inc., Red Hat
http://rhn.redhat.com/errata/RHSA-2016-1628.html CVE, Inc., Red Hat
http://rhn.redhat.com/errata/RHSA-2016-1629.html CVE, Inc., Red Hat
http://rhn.redhat.com/errata/RHSA-2016-1630.html CVE, Inc., Red Hat
http://www.openwall.com/lists/oss-security/2016/06/14/9 CVE, Inc., Red Hat Mailing List 
http://www.securityfocus.com/bid/91225 CVE, Inc., Red Hat
http://www.splunk.com/view/SP-CAAAPSV CVE, Inc., Red Hat
http://www.splunk.com/view/SP-CAAAPUE CVE, Inc., Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1303647 CVE, Inc., Red Hat Issue Tracking  Third Party Advisory 
https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5 CVE, Inc., Red Hat Release Notes 
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2 CVE, Inc., Red Hat Release Notes 
https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS CVE, Inc., Red Hat Release Notes 
https://hg.python.org/cpython/rev/b3ce713fb9be CVE, Inc., Red Hat Patch 
https://hg.python.org/cpython/rev/d590114c2394 CVE, Inc., Red Hat Patch 
https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html CVE, Inc., Red Hat
https://security.gentoo.org/glsa/201701-18 CVE, Inc., Red Hat

Weakness Enumeration

CWE-ID CWE Name Source
CWE-693 Protection Mechanism Failure cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-0772
NVD Published Date:
09/02/2016
NVD Last Modified:
04/12/2025
Source:
Red Hat, Inc.