Executive Summary

Summary
Title pyOpenSSL vulnerabilities
Informations
Name USN-3813-1 First vendor Publication 2018-11-08
Vendor Ubuntu Last vendor Modification 2018-11-08
Severity (Vendor) N/A Revision N/A

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:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in pyOpenSSL.

Software Description: - pyopenssl: Python wrapper around the OpenSSL library

Details:

It was discovered that pyOpenSSL incorrectly handled memory when handling X509 objects. A remote attacker could use this issue to cause pyOpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-1000807)

It was discovered that pyOpenSSL incorrectly handled memory when performing operations on a PKCS #12 store. A remote attacker could possibly use this issue to cause pyOpenSSL to consume resources, resulting in a denial of service. (CVE-2018-1000808)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04 LTS:
python-openssl 0.15.1-2ubuntu0.2
python3-openssl 0.15.1-2ubuntu0.2

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3813-1
CVE-2018-1000807, CVE-2018-1000808

Package Information:
https://launchpad.net/ubuntu/+source/pyopenssl/0.15.1-2ubuntu0.2

Original Source

Url : http://www.ubuntu.com/usn/USN-3813-1

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-416 Use After Free
50 % CWE-404 Improper Resource Shutdown or Release

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 1
Application 1
Os 1
Os 1
Os 1
Os 1

Alert History

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0
1
2
Date Informations
2019-03-22 00:20:59
  • Multiple Updates
2019-01-10 17:21:20
  • Multiple Updates
2018-11-08 17:18:48
  • First insertion