CVE-2013-4238 - CVE House
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Status published Medium CVE-2013-4238

The ssl.match_hostname function in the SSL module in Python 2.6...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

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Affected Vendor

Affected Software

ubuntu linux, python, opensuse
Vulnerable Versions:
10.04, 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, 2.7.2, 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, 3.2.3, 3.2.2150, 3.3, 3.4, 11.4, 12.2, 12.3

Timeline

Official Publish: August 18th, 2013
Last Modified: August 6th, 2024
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.