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medium4.3

CVE-2013-2099

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_m…

Impact

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.

Affected products

VendorProductAffected versions
PythonPython
Versions 3.2.0, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5
CanonicalUbuntu Linux
Versions 12.04, 12.10, 13.04

Weakness classification

CWE-399

References