CVE-2016-0772

Priority
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."
Notes
sbeattieissue is fixed for xenial/python3.5 and xenial/python2.7
for packages in xenial-updates, but not xenial-security
Package
Upstream:released (2.7.12~rc1-1)
Ubuntu 12.04 ESM (Precise Pangolin):released (2.7.3-0ubuntu3.9)
Ubuntu 14.04 ESM (Trusty Tahr):released (2.7.6-8ubuntu0.3)
Ubuntu 16.04 LTS (Xenial Xerus):released (2.7.12-1ubuntu0~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (2.7.12-3)
Ubuntu 19.10 (Eoan Ermine):not-affected (2.7.12-3)
Ubuntu 20.04 (Focal Fossa):not-affected (2.7.12-3)
Patches:
Upstream:https://hg.python.org/cpython/rev/b3ce713fb9be
Package
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was released [3.2.3-0ubuntu3.8])
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):released (3.4.3-1ubuntu1~14.04.5)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Patches:
Upstream:https://hg.python.org/cpython/rev/d590114c2394
Package
Upstream:released (3.5.2~rc1-1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):needs-triage
Ubuntu 16.04 LTS (Xenial Xerus):released (3.5.2-2ubuntu0~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
More Information

Updated: 2020-04-24 03:19:59 UTC (commit d3f8a6ed481830fb100109a132bef581fc4176fe)