Executive Summary

Summary
Title Twisted vulnerabilities
Informations
Name USN-4308-1 First vendor Publication 2020-03-19
Vendor Ubuntu Last vendor Modification 2020-03-19
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Twisted.

Software Description: - twisted: Event-based framework for internet applications

Details:

it was discovered that Twisted incorrectly validated or sanitized certain URIs or HTTP methods. A remote attacker could use this issue to inject invalid characters and possibly perform header injection attacks. (CVE-2019-12387)

It was discovered that Twisted incorrectly verified XMPP TLS certificates. A remote attacker could possibly use this issue to perform a man-in-the-middle attack and obtain sensitive information. (CVE-2019-12855)

It was discovered that Twisted incorrectly handled HTTP/2 connections. A remote attacker could possibly use this issue to cause Twisted to hang or consume resources, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2019-9512, CVE-2019-9514, CVE-2019-9515)

Jake Miller and ZeddYu Lu discovered that Twisted incorrectly handled certain content-length headers. A remote attacker could possibly use this issue to perform HTTP request splitting attacks. (CVE-2020-10108, CVE-2020-10109)

Update instructions:

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

Ubuntu 19.10:
python-twisted 18.9.0-3ubuntu1.1
python-twisted-bin 18.9.0-3ubuntu1.1
python-twisted-web 18.9.0-3ubuntu1.1
python3-twisted 18.9.0-3ubuntu1.1
python3-twisted-bin 18.9.0-3ubuntu1.1

Ubuntu 18.04 LTS:
python-twisted 17.9.0-2ubuntu0.1
python-twisted-bin 17.9.0-2ubuntu0.1
python-twisted-web 17.9.0-2ubuntu0.1
python3-twisted 17.9.0-2ubuntu0.1
python3-twisted-bin 17.9.0-2ubuntu0.1

Ubuntu 16.04 LTS:
python-twisted 16.0.0-1ubuntu0.4
python-twisted-bin 16.0.0-1ubuntu0.4
python-twisted-web 16.0.0-1ubuntu0.4
python3-twisted 16.0.0-1ubuntu0.4

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

References:
https://usn.ubuntu.com/4308-1
CVE-2019-12387, CVE-2019-12855, CVE-2019-9512, CVE-2019-9514,
CVE-2019-9515, CVE-2020-10108, CVE-2020-10109

Package Information:
https://launchpad.net/ubuntu/+source/twisted/18.9.0-3ubuntu1.1
https://launchpad.net/ubuntu/+source/twisted/17.9.0-2ubuntu0.1
https://launchpad.net/ubuntu/+source/twisted/16.0.0-1ubuntu0.4

Original Source

Url : http://www.ubuntu.com/usn/USN-4308-1

CWE : Common Weakness Enumeration

% Id Name
29 % CWE-770 Allocation of Resources Without Limits or Throttling
29 % CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
14 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
14 % CWE-295 Certificate Issues
14 % CWE-74 Failure to Sanitize Data into a Different Plane ('Injection')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 12
Application 1
Application 2
Os 4
Os 1
Os 3
Os 2
Os 1

Alert History

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Date Informations
2024-11-12 07:02:25
  • First insertion