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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-2763-1 | pyopenssl security update |
EUVD |
EUVD-2013-0029 | 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. |
Github GHSA |
GHSA-6748-36qp-fx6r | PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name |
Ubuntu USN |
USN-1965-1 | pyOpenSSL vulnerability |
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-06T16:38:01.984Z
Reserved: 2013-06-12T00:00:00.000Z
Link: CVE-2013-4314
No data.
Status : Modified
Published: 2013-09-30T21:55:09.583
Modified: 2026-04-29T01:13:23.040
Link: CVE-2013-4314
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD
Github GHSA
Ubuntu USN