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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 Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade python-urllib3Upgrade bzrUpgrade linkcheckerUpgrade python-tornadoUpgrade python2.7 | Jul 30, 2024 | Oct 9, 2013 |
| Gentoo Linux | — | Upgrade dev-lang/python. | Oct 30, 2017 | Oct 9, 2013 |
| Oracle Solaris | — | Upgrade runtime/python-26 to version 2.6.8-0.175.1.12.0.3.0 on Solaris 11.1 | May 29, 2017 | Oct 9, 2013 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 15, 2013 |
| Suse | — | Upgrade python3-baseUpgrade python3-dbmUpgrade python3-testsuiteUpgrade python3Upgrade python3-develUpgrade python3-cursesUpgrade python3-toolsUpgrade libpython3_3m1_0Upgrade libpython3_3m1_0-32bitUpgrade python3-32bitUpgrade python3-doc-pdfUpgrade python3-tkUpgrade python3-docUpgrade python3-base-32bitUpgrade python3-idle | Sep 30, 2014 | Oct 9, 2013 |
| Ubuntu | — | Upgrade python3.3Upgrade python2.7Upgrade python3.2Upgrade python2.7-minimalUpgrade python3.3-minimalUpgrade python3.2-minimal | Nov 8, 2024 | Oct 9, 2013 |
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