Executive Summary

Summary
Title HAProxy vulnerability
Informations
Name USN-4212-1 First vendor Publication 2019-12-04
Vendor Ubuntu Last vendor Modification 2019-12-04
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 19.04 - Ubuntu 18.04 LTS

Summary:

HAProxy could be made to execute arbitrary code if it received a specially crafted HTTP/2 header.

Software Description: - haproxy: fast and reliable load balancing reverse proxy

Details:

Tim Düsterhus discovered that HAProxy incorrectly handled certain HTTP/2 headers. An attacker could possibly use this issue to execute arbitrary code through CRLF injection.

Update instructions:

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

Ubuntu 19.10:
haproxy 2.0.5-1ubuntu0.3

Ubuntu 19.04:
haproxy 1.8.19-1ubuntu1.3

Ubuntu 18.04 LTS:
haproxy 1.8.8-1ubuntu0.9

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

References:
https://usn.ubuntu.com/4212-1
CVE-2019-19330

Package Information:
https://launchpad.net/ubuntu/+source/haproxy/2.0.5-1ubuntu0.3
https://launchpad.net/ubuntu/+source/haproxy/1.8.19-1ubuntu1.3
https://launchpad.net/ubuntu/+source/haproxy/1.8.8-1ubuntu0.9

Original Source

Url : http://www.ubuntu.com/usn/USN-4212-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-74 Failure to Sanitize Data into a Different Plane ('Injection')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 270
Os 3
Os 1

Alert History

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0
1
Date Informations
2020-05-23 13:03:46
  • Multiple Updates
2019-12-04 17:19:53
  • First insertion