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CVE-2013-4314 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html	CVE
https://bugzilla.redhat.com/show_bug.cgi?id=1005325	CVE
https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html	CVE
http://www.debian.org/security/2013/dsa-2763	CVE
http://www.openwall.com/lists/oss-security/2013/09/06/2	CVE
http://www.ubuntu.com/usn/USN-1965-1	CVE	Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html	[email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1005325	[email protected]
https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html	[email protected]
http://www.debian.org/security/2013/dsa-2763	[email protected]
http://www.openwall.com/lists/oss-security/2013/09/06/2	[email protected]
http://www.ubuntu.com/usn/USN-1965-1	[email protected]	Vendor Advisory

see all 12 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	[email protected]

Affected Products

Product	Versions
jean-paul calderone pyopenssl	<= 0.13 0.7 0.8 a1 0.9 0.10
CPE cpe:2.3:a:jean-paul_calderone:pyopenssl:::::::: cpe:2.3:a:jean-paul_calderone:pyopenssl:0.7:::::::* cpe:2.3:a:jean-paul_calderone:pyopenssl:0.8:a1:::::: cpe:2.3:a:jean-paul_calderone:pyopenssl:0.9:::::::* cpe:2.3:a:jean-paul_calderone:pyopenssl:0.10:::::::* cpe:2.3:a:jean-paul_calderone:pyopenssl:0.11:::::::* cpe:2.3:a:jean-paul_calderone:pyopenssl:0.11:a1:::::: cpe:2.3:a:jean-paul_calderone:pyopenssl:0.11:a2:::::: cpe:2.3:a:jean-paul_calderone:pyopenssl:0.12:::::::* Remediation No remediation found in references.
canonical ubuntu linux	10.04 - 12.04 - 12.10 13.04
CPE cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:::::* cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:::::* cpe:2.3:o:canonical:ubuntu_linux:12.10:::::::* cpe:2.3:o:canonical:ubuntu_linux:13.04:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 29, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 23, 2013	Initial Analysis	[email protected]