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CVE-2013-4238

Public on 2013-08-18
Modified on 2015-06-22
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.

Severity
Medium
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CVSS v3 Base Score
4.3
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 python26 2013-11-03 12:09 ALAS-2013-241
Amazon Linux 1 python27 2013-09-04 13:31 ALAS-2013-220

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
NVD CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N