CVE-2013-2099

MediumCVSS 4.3/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 4.3/10AV:N/AC:M/Au:N/C:N/I:N/A:P

Weakness enumeration

CWE-399

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Oct 9, 2013
Last modified
Jun 16, 2026
NVD status
Modified

Related CVEs from 2013

CVE-2013-21009.3The urlopen function in pym/portage/util/_urlopen.py in Gentoo Portage 2.1.12, when using HTTPS, does not verify X.509 certificates from SSLCVE-2013-21015.4Katello has multiple XSS issues in various entitiesCVE-2013-21023.3The default configuration of Red Hat JBoss Portal before 6.1.0 enables the JGroups diagnostics service with no authentication when a JGroupsCVE-2013-21038.1OpenShift cartridge allows remote URL retrievalCVE-2013-21045.5python-keystoneclient before 0.2.4, as used in OpenStack Keystone (Folsom), does not properly check expiry for PKI tokens, which allows remoCVE-2013-21053.3The Show In Browser (show_in_browser) gem 0.0.3 for Ruby allows local users to inject arbitrary web script or HTML via a symlink attack on /CVE-2013-21067.5webauth before 4.6.1 has authentication credential disclosureCVE-2013-21076.8Cross-site request forgery (CSRF) vulnerability in the Mail On Update plugin before 5.2.0 for WordPress allows remote attackers to hijack thCVE-2013-21085.4WordPress WP Cleanfix Plugin 2.4.4 has CSRFCVE-2013-21098.8WordPress plugin wp-cleanfix has Remote Code ExecutionCVE-2013-21105.0Heap-based buffer overflow in the php_quot_print_encode function in ext/standard/quot_print.c in PHP before 5.3.26 and 5.4.x before 5.4.16 aCVE-2013-21115.0The IMAP functionality in Dovecot before 2.2.2 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via