CVE-2013-4238

Advisory lineage Upstream: 0 Downstream: 22
Modified
Published: 18 Aug 2013, 01:00
Last modified:06 Aug 2024, 16:38

Vulnerability Summary

Overall Risk (default)
low
17/100
CVSS Score
4.3 MEDIUM
v2.0 (nvd)
EPSS Score
1.38% LOW
1% probability -2.89%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Aug 2013, 01:00
Published
Vulnerability first disclosed
06 Aug 2024, 16:38
Last Modified
Vulnerability information updated

Description

The ssl.match_hostname function in the SSL module in Python 2.6 through 3.4 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

CVSS Metrics

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

EPSS Trends

Current EPSS score: 1.38%• Percentile: 81%

Techniques & Countermeasures

  • CWE-20•Improper Input Validation

    The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected Systems

  • canonical•ubuntu_linux

    10.04

  • opensuse•opensuse

    11.4 | 12.2 | 12.3

  • python•python

    2.6.1 | 2.6.2 | 2.6.3 | 2.6.4 | 2.6.5 | 2.6.6 | 2.6.7 | 2.6.8 | 2.6.2150 | 2.6.6150 | 2.7.1 | 2.7.1:rc1 | 2.7.2:rc1 | 2.7.3 | 2.7.1150 | 2.7.2150 | 3.0 | 3.0.1 | 3.1 | 3.1.1 | 3.1.2 | 3.1.3 | 3.1.4 | 3.1.5 | 3.1.2150 | 3.2 | 3.2:alpha | 3.2.3 | 3.2.2150 | 3.3 | 3.3:beta2 | 3.4:alpha1

References (15)