Unscored severity · published Oct 9, 2013
CVE-2013-2099
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…
–
CVSS
4.9%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)4.9% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PY
Python · Python
3.2.0; 3.2.1; 3.2.2; 3.2.3; 3.2.4; 3.2.5; +3 more · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 12.10; 13.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-2099
CVE.org
https://www.cve.org/CVERecord?id=CVE-2013-2099
Patch
http://bugs.python.org/issue17980
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2014-1690.html
Vendor Advisory
http://secunia.com/advisories/55107
Vendor Advisory
http://secunia.com/advisories/55116
www.openwall.com
http://www.openwall.com/lists/oss-security/2013/05/16/6
www.ubuntu.com
http://www.ubuntu.com/usn/USN-1983-1
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