VYPR
← All advisories
Unrated severityNVD Advisory· Published Oct 9, 2013· Updated Jun 16, 2026

CVE-2013-2099

CVE-2013-2099

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

14
  • Python (programming language)/Python10 versions
    cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*+ 9 more
    • cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*
    • cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*
    • (no CPE)range: 3.2.x, 3.3.x, and earlier
  • Canonical/Ubuntu Linux3 versions
    cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*+ 2 more
    • cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
    • cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
    • cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*
  • Python Backports SSL Match Hostname/python-backports-ssl_match_hostnamellm-create

Patches

Vulnerability mechanics

References

10

News mentions

0

No linked articles in our index yet.