CVE-2013-4238
EPSS 1.4%python2.7 - security update
Published: 8/18/2013Modified: 4/28/2026
Description
The ssl.match_hostname function in the SSL module in Python 2.6 through 3.4 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Affected packages (2)
- Debian/python2.7from 0, < 2.7.5-8
- Debian/python2.7from 0, < 2.7.3-6+deb7u2