CVE-2013-4314
Ubuntu Security Notice USN-1965-1
Severity Score
4.3
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
La X509Extension en pyOpenSSL ante de 0.13.1 no maneja apropiadamente el carácter "\0" en el nombre de dominio en el campo Subject Alternative Name de un certificado X.509 que permite a atacantes man-in-the-middle suplantar servidores SSL a través de un un certificado manipulado emitido por una autoridad de certificación legítima
The string formatting of subjectAltName X509Extension instances in pyOpenSSL before 0.13.1 incorrectly truncated fields of the name when encountering a null byte, possibly allowing man-in-the-middle attacks through certificate spoofing. The updated packages have been patched to correct this issue.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2013-06-12 CVE Reserved
- 2013-09-13 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2013/09/06/2 | Mailing List |
|
| https://bugzilla.redhat.com/show_bug.cgi?id=1005325 | X_refsource_confirm | |
| https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html | Mailing List |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html | 2013-12-08 | |
| http://www.debian.org/security/2013/dsa-2763 | 2013-12-08 | |
| http://www.ubuntu.com/usn/USN-1965-1 | 2013-12-08 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | <= 0.13 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version " <= 0.13" | - |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.7 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.7" | - |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.8 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.8" | a1 |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.9 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.9" | - |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.10 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.10" | - |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.11 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.11" | - |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.11 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.11" | a1 |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.11 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.11" | a2 |
Affected
| ||||||
| Jean-paul Calderone Search vendor "Jean-paul Calderone" | Pyopenssl Search vendor "Jean-paul Calderone" for product "Pyopenssl" | 0.12 Search vendor "Jean-paul Calderone" for product "Pyopenssl" and version "0.12" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 10.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "10.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.10" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 13.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "13.04" | - |
Affected
| ||||||