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CVE-2013-2099

N/A

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.

CVE Details

CVSS v3.1 ScoreN/A

Published10/9/2013

Last Modified4/29/2026

Sourcenvd

Honeypot Sightings0

Affected Products

canonical:ubuntu_linuxpython:python

Weaknesses (CWE)

CWE-399

References

http://bugs.python.org/issue17980(secalert@redhat.com)

http://rhn.redhat.com/errata/RHSA-2014-1690.html(secalert@redhat.com)

http://secunia.com/advisories/55107(secalert@redhat.com)

http://secunia.com/advisories/55116(secalert@redhat.com)

http://www.openwall.com/lists/oss-security/2013/05/16/6(secalert@redhat.com)

http://www.ubuntu.com/usn/USN-1983-1(secalert@redhat.com)

http://www.ubuntu.com/usn/USN-1984-1(secalert@redhat.com)

http://www.ubuntu.com/usn/USN-1985-1(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2016:1166(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=963260(secalert@redhat.com)

http://bugs.python.org/issue17980(af854a3a-2127-422b-91ae-364da2661108)

http://rhn.redhat.com/errata/RHSA-2014-1690.html(af854a3a-2127-422b-91ae-364da2661108)

http://secunia.com/advisories/55107(af854a3a-2127-422b-91ae-364da2661108)

http://secunia.com/advisories/55116(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2013/05/16/6(af854a3a-2127-422b-91ae-364da2661108)

http://www.ubuntu.com/usn/USN-1983-1(af854a3a-2127-422b-91ae-364da2661108)

http://www.ubuntu.com/usn/USN-1984-1(af854a3a-2127-422b-91ae-364da2661108)

http://www.ubuntu.com/usn/USN-1985-1(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2016:1166(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.redhat.com/show_bug.cgi?id=963260(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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