Executive Summary

Summary
Title Python vulnerabilities
Informations
Name USN-4333-2 First vendor Publication 2020-04-30
Vendor Ubuntu Last vendor Modification 2020-04-30
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.1 Attack Range Network
Cvss Impact Score 6.9 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 20.04 LTS

Summary:

Several security issues were fixed in Python.

Software Description: - python3.8: Interactive high-level object-oriented language (version 3.8)

Details:

USN-4333-1 fixed vulnerabilities in Python. This update provides the corresponding update for Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that Python incorrectly stripped certain characters from
requests. A remote attacker could use this issue to perform CRLF injection.
(CVE-2019-18348)

It was discovered that Python incorrectly handled certain HTTP requests.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-8492)

Update instructions:

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

Ubuntu 20.04 LTS:
python3.8 3.8.2-1ubuntu1.1
python3.8-minimal 3.8.2-1ubuntu1.1

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

References:
https://usn.ubuntu.com/4333-2
https://usn.ubuntu.com/4333-1
CVE-2019-18348, CVE-2020-8492

Package Information:
https://launchpad.net/ubuntu/+source/python3.8/3.8.2-1ubuntu1.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4333-2

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
50 % CWE-74 Failure to Sanitize Data into a Different Plane ('Injection')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 293
Os 6
Os 1
Os 2
Os 1

Alert History

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0
1
Date Informations
2020-05-23 13:03:46
  • Multiple Updates
2020-04-30 17:19:34
  • First insertion