5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
python27-python is vulnerable to man-in-the-middle (MitM) attacks. The vulnerability exists as 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 © subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
bugs.python.org/issue22417
lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
www.openwall.com/lists/oss-security/2014/12/11/1
www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
www.securityfocus.com/bid/71639
access.redhat.com/articles/2039753
access.redhat.com/documentation/en-US/Red_Hat_Software_Collections/2/html/2.4_Release_Notes/chap-RHSCL.html#sect-RHSCL-Changes-python
access.redhat.com/errata/RHSA-2016:1166
access.redhat.com/errata/RHSA-2017:1162
access.redhat.com/errata/RHSA-2017:1868
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1336776
bugzilla.redhat.com/show_bug.cgi?id=1344674
bugzilla.redhat.com/show_bug.cgi?id=1353200
bugzilla.redhat.com/show_bug.cgi?id=1355805
bugzilla.redhat.com/show_bug.cgi?id=1402809
bugzilla.redhat.com/show_bug.cgi?id=1417108
bugzilla.redhat.com/show_bug.cgi?id=1417139
bugzilla.redhat.com/show_bug.cgi?id=1417838
bugzilla.redhat.com/show_bug.cgi?id=1430763
security.gentoo.org/glsa/201503-10
support.apple.com/kb/HT205031
www.python.org/dev/peps/pep-0476/
www.python.org/downloads/release/python-279/