Denial of Service (DoS) Affecting tornado package, versions [,3.2)
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Test your applications- Snyk ID SNYK-PYTHON-TORNADO-40010
- published 15 May 2013
- disclosed 15 May 2013
- credit Unknown
Introduced: 15 May 2013
CVE-2013-2099 Open this link in a new tabHow to fix?
Upgrade tornado to version 3.2 or higher.
Overview
tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.
Affected versions of this package are vulnerable to Denial of Service (DoS). 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.