Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2016-0772 Details

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

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

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

see all 36 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-693	Protection Mechanism Failure	[email protected]

Affected Products

Product	Versions
python python	3.5.0 3.5.1 3.0 3.0.1 3.1.0
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:3.1.0:::::::* 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:3.2.0:::::::* 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:::::::: Remediation No remediation found in references.

Product

Versions

python python

3.5.0

3.5.1

3.0

3.0.1

3.1.0

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:3.1.0:*:*:*:*:*:*:*
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:3.2.0:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

13 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 6, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jan 21, 2020	CVE Modified	[email protected]
Feb 9, 2019	CVE Modified	[email protected]
Jan 5, 2018	CVE Modified	[email protected]
Jul 1, 2017	CVE Modified	[email protected]
Dec 24, 2016	CVE Modified	[email protected]
Nov 28, 2016	CVE Modified	[email protected]
Sep 2, 2016	CVE Translated	[email protected]
Sep 2, 2016	Modified Analysis	[email protected]
Sep 2, 2016	Initial Analysis	[email protected]