Executive Summary
| Summary | |
|---|---|
| Title | pyopenssl security update |
| Informations | |||
|---|---|---|---|
| Name | DSA-2763 | First vendor Publication | 2013-09-24 |
| Vendor | Debian | Last vendor Modification | 2013-09-24 |
| Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 4.3 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Medium |
| Cvss Expoit Score | 8.6 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| It was discovered that PyOpenSSL, a Python wrapper around the OpenSSL library, does not properly handle certificates with NULL characters in the Subject Alternative Name field. A remote attacker in the position to obtain a certificate for 'www.foo.org\0.example.com' from a CA that a SSL client trusts, could use this to spoof 'www.foo.org' and conduct man-in-the-middle attacks between the PyOpenSSL-using client and the SSL server. For the oldstable distribution (squeeze), this problem has been fixed in version 0.10-1+squeeze1. For the stable distribution (wheezy), this problem has been fixed in version 0.13-2+deb7u1. For the unstable distribution (sid), this problem has been fixed in version 0.13-2.1. We recommend that you upgrade your pyopenssl packages. |
Original Source
| Url : http://www.debian.org/security/2013/dsa-2763 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-20 | Improper Input Validation |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:19204 | |||
| Oval ID: | oval:org.mitre.oval:def:19204 | ||
| Title: | USN-1965-1 -- pyopenssl vulnerability | ||
| Description: | Fraudulent security certificates could allow sensitive information to be exposed when accessing the Internet. | ||
| Family: | unix | Class: | patch |
| Reference(s): | USN-1965-1 CVE-2013-4314 | Version: | 5 |
| Platform(s): | Ubuntu 13.04 Ubuntu 12.10 Ubuntu 12.04 Ubuntu 10.04 | Product(s): | pyopenssl |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:19756 | |||
| Oval ID: | oval:org.mitre.oval:def:19756 | ||
| Title: | DSA-2763-1 pyopenssl - hostname check bypassing | ||
| Description: | It was discovered that PyOpenSSL, a Python wrapper around the OpenSSL library, does not properly handle certificates with NULL characters in the Subject Alternative Name field. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2763-1 CVE-2013-4314 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 6.0 Debian GNU/Linux 7 Debian GNU/kFreeBSD 6.0 Debian GNU/kFreeBSD 7 | Product(s): | pyopenssl |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2013-822.nasl - Type : ACT_GATHER_INFO |
| 2013-09-25 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2763.nasl - Type : ACT_GATHER_INFO |
| 2013-09-24 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1965-1.nasl - Type : ACT_GATHER_INFO |
| 2013-09-14 | Name : The remote Mandriva Linux host is missing a security update. File : mandriva_MDVSA-2013-233.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:32:12 |
|
| 2013-10-01 21:23:28 |
|
| 2013-10-01 17:22:47 |
|
| 2013-09-24 21:19:05 |
|
