VULNERABILITY INTELLIGENCE

CVE-2013-2099

CVSS score4.3 MEDIUM
EPSS probability4.86%
CISA KEVNot currently listed
Published2013-10-09
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:N/A:P

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.

Primary references