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CVE-2013-4314

nvd nist
Published: Sep 30, 2013Modified: Apr 29, 2026

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4.3
Vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Exploitability: 8.6 / Impact: 2.9
Source: NVD

Description

The X509Extension in pyOpenSSL before 0.13.1 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.

Affected (13)

Jean Paul Calderone
1 product
Pyopenssl
Canonical
1 product
Ubuntu Linux
Configuration A
9 vulnerable
Vulnerable SoftwareAffected Versions
Pyopenssl
Up to 0.13
Pyopenssl
Version 0.10
Pyopenssl
Version 0.11
Pyopenssl
Version 0.11 a1
Pyopenssl
Version 0.11 a2
Pyopenssl
Version 0.12
Pyopenssl
Version 0.7
Pyopenssl
Version 0.8 a1
Pyopenssl
Version 0.9
Configuration B
4 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 10.04
Ubuntu Linux
Version 12.04
Ubuntu Linux
Version 12.10
Ubuntu Linux
Version 13.04

Related CWEs

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.

References (12)

Source: secalert@redhat.com
Source: secalert@redhat.com
Source: secalert@redhat.com
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Source: secalert@redhat.com
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.