What’s Vulnerable › Vulnerabilities
CVE-2014-9365
- Severity: medium (CVSS 5.8 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.0% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2014-12-12 · updated 2026-06-17
Description
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.
Affected products
References
- http://bugs.python.org/issue22417
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- http://www.openwall.com/lists/oss-security/2014/12/11/1
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.securityfocus.com/bid/71639
- https://access.redhat.com/errata/RHSA-2016:1166
- https://access.redhat.com/errata/RHSA-2017:1162
- https://access.redhat.com/errata/RHSA-2017:1868
- https://security.gentoo.org/glsa/201503-10
- https://support.apple.com/kb/HT205031
- https://www.python.org/dev/peps/pep-0476/
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