Executive Summary

Summary
Title nginx vulnerabilities
Informations
Name USN-3812-1 First vendor Publication 2018-11-07
Vendor Ubuntu Last vendor Modification 2018-11-07
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
 
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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

Detail

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

- Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in nginx.

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

Details:

It was discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause excessive memory consumption, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16843)

Gal Goldshtein discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause excessive CPU usage, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16844)

It was discovered that nginx incorrectly handled the ngx_http_mp4_module module. A remote attacker could possibly use this issue with a specially crafted mp4 file to cause nginx to crash, stop responding, or access arbitrary memory. (CVE-2018-16845)

Update instructions:

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

Ubuntu 18.10:
nginx-common 1.15.5-0ubuntu2.1
nginx-core 1.15.5-0ubuntu2.1
nginx-extras 1.15.5-0ubuntu2.1
nginx-full 1.15.5-0ubuntu2.1
nginx-light 1.15.5-0ubuntu2.1

Ubuntu 18.04 LTS:
nginx-common 1.14.0-0ubuntu1.2
nginx-core 1.14.0-0ubuntu1.2
nginx-extras 1.14.0-0ubuntu1.2
nginx-full 1.14.0-0ubuntu1.2
nginx-light 1.14.0-0ubuntu1.2

Ubuntu 16.04 LTS:
nginx-common 1.10.3-0ubuntu0.16.04.3
nginx-core 1.10.3-0ubuntu0.16.04.3
nginx-extras 1.10.3-0ubuntu0.16.04.3
nginx-full 1.10.3-0ubuntu0.16.04.3
nginx-light 1.10.3-0ubuntu0.16.04.3

Ubuntu 14.04 LTS:
nginx-common 1.4.6-1ubuntu3.9
nginx-core 1.4.6-1ubuntu3.9
nginx-extras 1.4.6-1ubuntu3.9
nginx-full 1.4.6-1ubuntu3.9
nginx-light 1.4.6-1ubuntu3.9

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

References:
https://usn.ubuntu.com/usn/usn-3812-1
CVE-2018-16843, CVE-2018-16844, CVE-2018-16845

Package Information:
https://launchpad.net/ubuntu/+source/nginx/1.15.5-0ubuntu2.1
https://launchpad.net/ubuntu/+source/nginx/1.14.0-0ubuntu1.2
https://launchpad.net/ubuntu/+source/nginx/1.10.3-0ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/nginx/1.4.6-1ubuntu3.9

Original Source

Url : http://www.ubuntu.com/usn/USN-3812-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 507
Os 4
Os 2
Os 1

Nessus® Vulnerability Scanner

Date Description
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-7c540fdab4.nasl - Type : ACT_GATHER_INFO
2018-12-17 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1125.nasl - Type : ACT_GATHER_INFO
2018-12-10 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1399.nasl - Type : ACT_GATHER_INFO
2018-11-14 Name : The remote web server is affected by multiple vulnerabilities.
File : nginx_1_15_6.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote Debian host is missing a security update.
File : debian_DLA-1572.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4335.nasl - Type : ACT_GATHER_INFO
2018-11-07 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_84ca56bee1de11e8bcfd00e04c1ea73d.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2018-12-13 00:21:17
  • Multiple Updates
2018-11-07 17:22:23
  • Multiple Updates
2018-11-07 17:19:19
  • First insertion