CVE - CVE-2016-0772

CVE-ID
CVE-2016-0772	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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."
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20160614 Python CVE-2016-0772: smtplib StartTLS stripping attack URL:http://www.openwall.com/lists/oss-security/2016/06/14/9 CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=1303647 CONFIRM:https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5 CONFIRM:https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2 CONFIRM:https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS CONFIRM:https://hg.python.org/cpython/rev/b3ce713fb9be CONFIRM:https://hg.python.org/cpython/rev/d590114c2394 CONFIRM:http://www.splunk.com/view/SP-CAAAPSV CONFIRM:http://www.splunk.com/view/SP-CAAAPUE GENTOO:GLSA-201701-18 URL:https://security.gentoo.org/glsa/201701-18 REDHAT:RHSA-2016:1626 URL:http://rhn.redhat.com/errata/RHSA-2016-1626.html REDHAT:RHSA-2016:1627 URL:http://rhn.redhat.com/errata/RHSA-2016-1627.html REDHAT:RHSA-2016:1628 URL:http://rhn.redhat.com/errata/RHSA-2016-1628.html REDHAT:RHSA-2016:1629 URL:http://rhn.redhat.com/errata/RHSA-2016-1629.html REDHAT:RHSA-2016:1630 URL:http://rhn.redhat.com/errata/RHSA-2016-1630.html BID:91225 URL:http://www.securityfocus.com/bid/91225
Assigning CNA
Red Hat, Inc.
Date Entry Created
20151216	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20151216)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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