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Denial of Service (DoS) Affecting tornado package, versions [,3.2)

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 5.33% (94th percentile)
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NVD
4.3 medium
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Red Hat
3.7 low

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  • Snyk ID SNYK-PYTHON-TORNADO-40010
  • published 15 May 2013
  • disclosed 15 May 2013
  • credit Unknown
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Introduced: 15 May 2013

CVE-2013-2099 Open this link in a new tab
CWE-399 Open this link in a new tab

How 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.