Junglewise Threat Intelligence

CVE-2013-4314: PYSEC-2013-31 - The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name fiel

CVE-2013-4314 · Severity: low · CVSS 3.1 · Published 2013-09-30

Technologies: pyopenssl (PyPI). Vendors: PyPI.

Executive brief

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 products

  • PyPI pyopenssl

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