CVE-2013-2099
EPSS 3.0%bzr - security update
Published: 10/9/2013Modified: 4/28/2026
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.
Affected packages (6)
- Debian/bzrfrom 0, < 2.6.0~bzr6574-1
- Debian/bzrfrom 0, < 2.6.0~bzr6526-1+deb7u1
- Debian/linkcheckerfrom 0, < 8.5-1
- Debian/python2.7from 0, < 2.7.5-5
- Debian/python-tornadofrom 0, < 2.4.1-3
- Debian/python-urllib3from 0, < 1.6-2