CVE-2016-0772 | BDVDB-2026-77847 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."
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://hg.python.org/cpython/rev/d590114c2394
- http://www.splunk.com/view/SP-CAAAPUE
- http://rhn.redhat.com/errata/RHSA-2016-1630.html
- http://rhn.redhat.com/errata/RHSA-2016-1627.html
- https://hg.python.org/cpython/rev/b3ce713fb9be
- http://rhn.redhat.com/errata/RHSA-2016-1629.html
- http://www.splunk.com/view/SP-CAAAPSV
- https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1303647
- https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5
- http://www.openwall.com/lists/oss-security/2016/06/14/9
- https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS
- https://security.gentoo.org/glsa/201701-18
- https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2
- http://www.securityfocus.com/bid/91225
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.