Denial of Service Vulnerability in Python's ssl.match_hostname Function

CVE-2013-2099 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:N/A:P

Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.

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