CVE-2013-4238

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…

published August 18, 2013

CVSS
—
EPSS
5%
Percentile
92.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.05347 · 92.6th percentile
Published
2013-08-18T01:00Z
EPSS history
Timeline
  • 18 AUG 01:00Z
    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…
    cvelistv5