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.
| Product | Vendor | Version |
|---|---|---|
| n/a | n/a | < 2037cb9d95f1741885f7daf50e8a028c4ade5317 |