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CVE-2013-2099

Published: Oct 9, 2013

Modified: Aug 6, 2024

PUBLISHED

Description

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://bugzilla.redhat.com/show_bug.cgi?id=963260

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vendor-advisory

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third-party-advisory

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vendor-advisory

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vendor-advisory

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http://bugs.python.org/issue17980

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third-party-advisory

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vendor-advisory

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vendor-advisory

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[oss-security] 20130515 Re: CVE Request (minor) -- Python 3.2: DoS when matching certificate with many '*' wildcard characters {was: CVE Request (minor) -- python-backports-ssl_match_hostname: Denial of service when matching certificate with many '*' wildcard characters }

mailing-list

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