CVE-2014-9365

Published: 12 December 2014

The HTTP clients in the (1) httplib, (2) urllib, (3) urllib2, and (4) xmlrpclib libraries in CPython (aka Python) 2.x before 2.7.9 and 3.x before 3.4.3, when accessing an HTTPS URL, do not (a) check the certificate against a trust store or verify that the server hostname matches a domain name in the subject's (b) Common Name or (c) subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Priority

Medium

Status

Package Release Status
python2.7
Launchpad, Ubuntu, Debian
Upstream
Released (2.7.9-1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Ignored

Ubuntu 12.04 ESM (Precise Pangolin) Ignored

python3.2
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist
(precise was needed)
python3.4
Launchpad, Ubuntu, Debian
Upstream
Released (3.4.3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr)
Released (3.4.3-1ubuntu1~14.04.2)
Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Notes

AuthorNote
mdeslaur This is https://www.python.org/dev/peps/pep-0476/ Before this was implemented in python 2.7.9 and 3.4.3, applications needed to verify certificate validity themselves. This is quite a large change to backport into stable releases, and the change in behaviour most certainly will break certain setups.
tyhicks We're considering the possibility of offering an opt-in fix for this issue via PEP 493 if the backport is not too invasive python3.4 in Ubuntu 14.04 LTS can be configured to perform full certificate verification via the /etc/python3.4/cert-verification.conf configuration file
mdeslaur we will not be fixing this in Ubuntu 14.04 LTS before EoL. Users are encouraged to migrate to a more recent Ubuntu version, or migrate their applications to python 3.

References

Bugs