Executive Summary

Title nginx vulnerabilities
Name USN-4099-1 First vendor Publication 2019-08-15
Vendor Ubuntu Last vendor Modification 2019-08-15
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:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


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

- Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS


nginx could be made to crash if it received specially crafted network traffic.

Software Description: - nginx: small, powerful, scalable web/proxy server


Jonathan Looney discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to consume resources, leading to a denial of service.

Update instructions:

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

Ubuntu 19.04:
nginx-common 1.15.9-0ubuntu1.1
nginx-core 1.15.9-0ubuntu1.1
nginx-extras 1.15.9-0ubuntu1.1
nginx-full 1.15.9-0ubuntu1.1
nginx-light 1.15.9-0ubuntu1.1

Ubuntu 18.04 LTS:
nginx-common 1.14.0-0ubuntu1.4
nginx-core 1.14.0-0ubuntu1.4
nginx-extras 1.14.0-0ubuntu1.4
nginx-full 1.14.0-0ubuntu1.4
nginx-light 1.14.0-0ubuntu1.4

Ubuntu 16.04 LTS:
nginx-common 1.10.3-0ubuntu0.16.04.4
nginx-core 1.10.3-0ubuntu0.16.04.4
nginx-extras 1.10.3-0ubuntu0.16.04.4
nginx-full 1.10.3-0ubuntu0.16.04.4
nginx-light 1.10.3-0ubuntu0.16.04.4

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

CVE-2019-9511, CVE-2019-9513, CVE-2019-9516

Package Information:

Original Source

Url : http://www.ubuntu.com/usn/USN-4099-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-770 Allocation of Resources Without Limits or Throttling

CPE : Common Platform Enumeration

Application 12
Os 1

Alert History

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Date Informations
2019-08-23 17:22:35
  • Multiple Updates
2019-08-15 21:19:04
  • First insertion