CVE-2013-2099

Aliases:DEBIAN-CVE-2013-2099
Advisory lineage Upstream: 0 Downstream: 9
Modified
Published: 09 Oct 2013, 14:44
Last modified:06 Aug 2024, 15:27

Vulnerability Summary

Overall Risk (default)
low
18/100
CVSS Score
4.3 MEDIUM
v2.0 (nvd)
EPSS Score
4.67% LOW
5% probability -0.57%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Oct 2013, 14:44
Published
Vulnerability first disclosed
06 Aug 2024, 15:27
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 4.67%• Percentile: 91%

Techniques & Countermeasures

  • CWE-399•Resource Management Errors

    Weaknesses in this category are related to improper management of system resources.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 12.10 | 13.04

  • debian•bzr

    < 2.6.0~bzr6574-1 | < 2.6.0~bzr6574-1 | < 2.6.0~bzr6574-1

  • debian•linkchecker

    < 8.5-1 | < 8.5-1 | < 8.5-1 | < 8.5-1

  • debian•python-tornado

    < 2.4.1-3 | < 2.4.1-3 | < 2.4.1-3 | < 2.4.1-3

  • debian•python-urllib3

    < 1.6-2 | < 1.6-2 | < 1.6-2 | < 1.6-2

  • debian•python2.7

    < 2.7.5-5

  • python•python

    3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.3.0 | 3.3.1 | 3.3.2

References (11)