CVE-2013-4314

mediumPriorität · verfolgen · 17EPSS 0.012 · 68. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.20% (68th) EPSS

CVSS 4.3 · medium

Is it mine?

13 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · bewertet 2026-10-27

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.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–high · 3.7–7.5

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 2.9

v2.03.7lowAV:N/AC:M/Au:N/C:N/I:P/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-20USprimärCWE-20US

betroffene Produkte (13)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
canonical ubuntu linux= 10.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 12.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 12.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 13.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
jean-paul calderone pyopenssl≤ 0.13nvdUScpe:2.3:a:jean-paul_calderone:pyopenssl:*:*:*:*:*:*:*:*
jean-paul calderone pyopenssl= 0.10nvdUScpe:2.3:a:jean-paul_calderone:pyopenssl:*:*:*:*:*:*:*:*
jean-paul calderone pyopenssl= 0.11nvdUScpe:2.3:a:jean-paul_calderone:pyopenssl:*:*:*:*:*:*:*:*
jean-paul calderone pyopenssl= 0.12nvdUScpe:2.3:a:jean-paul_calderone:pyopenssl:*:*:*:*:*:*:*:*
jean-paul calderone pyopenssl= 0.7nvdUScpe:2.3:a:jean-paul_calderone:pyopenssl:*:*:*:*:*:*:*:*
jean-paul calderone pyopenssl= 0.8nvdUScpe:2.3:a:jean-paul_calderone:pyopenssl:*:*:*:*:*:*:*:*
jean-paul calderone pyopenssl= 0.9nvdUScpe:2.3:a:jean-paul_calderone:pyopenssl:*:*:*:*:*:*:*:*
PyPI pyopenssl< 0.13.1osvUSpkg:pypi/pyopenssl

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-6748-36qp-fx6rPyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name2022-05-17ghsa · osvUS
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.
PYSEC-2013-312013-09-30vendor · osvUS
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.

auch bekannt als (6)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

veröffentlicht 2013-09-30geändert 2026-06-16

verwandt (25,193)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-88771US	critical9.8OT kritisch	82.2% (100th)	KEV	2026-09-27
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS,…
CVE-2026-93952US	—OT kritisch	1.38% (72nd)	KEV	2026-09-22
VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successf…
CVE-2026-12569US	critical9.8OT kritisch	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-34910US	—OT kritisch	90.0% (100th)	KEV	2026-05-22
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
CVE-2026-6973US	—OT kritisch	34.5% (98th)	KEV	2026-05-07
An Improper Input Validation in Ivanti EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1 allows a remotely authenticated user with administrative access to achieve remote code…

+25188 weitere

Referenzen (14)

Externe Belege — Patches, Meldungen, Analysen.

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