USN-4099-1: nginx vulnerabilities

Published Aug 15, 2019
·
Updated

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.

Affected Software

30 affected componentsFixes available
All of the following
ubuntu/nginx-common<1.15.9-0ubuntu1.1
1.15.9-0ubuntu1.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/nginx-core<1.15.9-0ubuntu1.1
1.15.9-0ubuntu1.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/nginx-extras<1.15.9-0ubuntu1.1
1.15.9-0ubuntu1.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/nginx-full<1.15.9-0ubuntu1.1
1.15.9-0ubuntu1.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/nginx-light<1.15.9-0ubuntu1.1
1.15.9-0ubuntu1.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/nginx-common<1.14.0-0ubuntu1.4
1.14.0-0ubuntu1.4
Ubuntu Ubuntu=18.04
All of the following
ubuntu/nginx-core<1.14.0-0ubuntu1.4
1.14.0-0ubuntu1.4
Ubuntu Ubuntu=18.04
All of the following
ubuntu/nginx-extras<1.14.0-0ubuntu1.4
1.14.0-0ubuntu1.4
Ubuntu Ubuntu=18.04
All of the following
ubuntu/nginx-full<1.14.0-0ubuntu1.4
1.14.0-0ubuntu1.4
Ubuntu Ubuntu=18.04
All of the following
ubuntu/nginx-light<1.14.0-0ubuntu1.4
1.14.0-0ubuntu1.4
Ubuntu Ubuntu=18.04
All of the following
ubuntu/nginx-common<1.10.3-0ubuntu0.16.04.4
1.10.3-0ubuntu0.16.04.4
Ubuntu Ubuntu=16.04
All of the following
ubuntu/nginx-core<1.10.3-0ubuntu0.16.04.4
1.10.3-0ubuntu0.16.04.4
Ubuntu Ubuntu=16.04
All of the following
ubuntu/nginx-extras<1.10.3-0ubuntu0.16.04.4
1.10.3-0ubuntu0.16.04.4
Ubuntu Ubuntu=16.04
All of the following
ubuntu/nginx-full<1.10.3-0ubuntu0.16.04.4
1.10.3-0ubuntu0.16.04.4
Ubuntu Ubuntu=16.04
All of the following
ubuntu/nginx-light<1.10.3-0ubuntu0.16.04.4
1.10.3-0ubuntu0.16.04.4
Ubuntu Ubuntu=16.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/nginx-common to a version that resolves this vulnerability.

    Fixed in 1.15.9-0ubuntu1.1
  2. Upgrade

    Upgrade ubuntu/nginx-core to a version that resolves this vulnerability.

    Fixed in 1.15.9-0ubuntu1.1
  3. Upgrade

    Upgrade ubuntu/nginx-extras to a version that resolves this vulnerability.

    Fixed in 1.15.9-0ubuntu1.1
  4. Upgrade

    Upgrade ubuntu/nginx-full to a version that resolves this vulnerability.

    Fixed in 1.15.9-0ubuntu1.1
  5. Upgrade

    Upgrade ubuntu/nginx-light to a version that resolves this vulnerability.

    Fixed in 1.15.9-0ubuntu1.1
  6. Upgrade

    Upgrade ubuntu/nginx-common to a version that resolves this vulnerability.

    Fixed in 1.14.0-0ubuntu1.4
  7. Upgrade

    Upgrade ubuntu/nginx-core to a version that resolves this vulnerability.

    Fixed in 1.14.0-0ubuntu1.4
  8. Upgrade

    Upgrade ubuntu/nginx-extras to a version that resolves this vulnerability.

    Fixed in 1.14.0-0ubuntu1.4
  9. Upgrade

    Upgrade ubuntu/nginx-full to a version that resolves this vulnerability.

    Fixed in 1.14.0-0ubuntu1.4
  10. Upgrade

    Upgrade ubuntu/nginx-light to a version that resolves this vulnerability.

    Fixed in 1.14.0-0ubuntu1.4
  11. Upgrade

    Upgrade ubuntu/nginx-common to a version that resolves this vulnerability.

    Fixed in 1.10.3-0ubuntu0.16.04.4
  12. Upgrade

    Upgrade ubuntu/nginx-core to a version that resolves this vulnerability.

    Fixed in 1.10.3-0ubuntu0.16.04.4
  13. Upgrade

    Upgrade ubuntu/nginx-extras to a version that resolves this vulnerability.

    Fixed in 1.10.3-0ubuntu0.16.04.4
  14. Upgrade

    Upgrade ubuntu/nginx-full to a version that resolves this vulnerability.

    Fixed in 1.10.3-0ubuntu0.16.04.4
  15. Upgrade

    Upgrade ubuntu/nginx-light to a version that resolves this vulnerability.

    Fixed in 1.10.3-0ubuntu0.16.04.4

Event History

Aug 15, 2019
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID for this nginx vulnerability?

The vulnerability ID for this nginx vulnerability is CVE-2019-9511.

2

What is the severity of CVE-2019-9511?

The severity of CVE-2019-9511 is high.

3

How does the vulnerability in nginx affect the system?

The vulnerability in nginx could allow a remote attacker to consume resources, leading to a denial of service.

4

Which versions of nginx on Ubuntu are affected by this vulnerability?

Versions 1.15.9-0ubuntu1.1, 1.14.0-0ubuntu1.4, and 1.10.3-0ubuntu0.16.04.4 of nginx on Ubuntu are affected.

5

How can I fix the CVE-2019-9511 vulnerability in nginx?

To fix the CVE-2019-9511 vulnerability in nginx, you should upgrade to version 1.15.9-0ubuntu1.1, 1.14.0-0ubuntu1.4, or 1.10.3-0ubuntu0.16.04.4 depending on the Ubuntu version you are using.

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