USN-4166-1: PHP vulnerability

Published Oct 28, 2019
·
Updated

It was discovered that PHP incorrectly handled certain paths when being used in FastCGI configurations. A remote attacker could possibly use this issue to execute arbitrary code.

Affected Software

32 affected componentsFixes available
All of the following
ubuntu/libapache2-mod-php7.3<7.3.11-0ubuntu0.19.10.1
7.3.11-0ubuntu0.19.10.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/php7.3-cgi<7.3.11-0ubuntu0.19.10.1
7.3.11-0ubuntu0.19.10.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/php7.3-cli<7.3.11-0ubuntu0.19.10.1
7.3.11-0ubuntu0.19.10.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/php7.3-fpm<7.3.11-0ubuntu0.19.10.1
7.3.11-0ubuntu0.19.10.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/libapache2-mod-php7.2<7.2.24-0ubuntu0.19.04.1
7.2.24-0ubuntu0.19.04.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/php7.2-cgi<7.2.24-0ubuntu0.19.04.1
7.2.24-0ubuntu0.19.04.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/php7.2-cli<7.2.24-0ubuntu0.19.04.1
7.2.24-0ubuntu0.19.04.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/php7.2-fpm<7.2.24-0ubuntu0.19.04.1
7.2.24-0ubuntu0.19.04.1
Ubuntu Ubuntu=19.04
All of the following
ubuntu/libapache2-mod-php7.2<7.2.24-0ubuntu0.18.04.1
7.2.24-0ubuntu0.18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/php7.2-cgi<7.2.24-0ubuntu0.18.04.1
7.2.24-0ubuntu0.18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/php7.2-cli<7.2.24-0ubuntu0.18.04.1
7.2.24-0ubuntu0.18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/php7.2-fpm<7.2.24-0ubuntu0.18.04.1
7.2.24-0ubuntu0.18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/libapache2-mod-php7.0<7.0.33-0ubuntu0.16.04.7
7.0.33-0ubuntu0.16.04.7
Ubuntu Ubuntu=16.04
All of the following
ubuntu/php7.0-cgi<7.0.33-0ubuntu0.16.04.7
7.0.33-0ubuntu0.16.04.7
Ubuntu Ubuntu=16.04
All of the following
ubuntu/php7.0-cli<7.0.33-0ubuntu0.16.04.7
7.0.33-0ubuntu0.16.04.7
Ubuntu Ubuntu=16.04
All of the following
ubuntu/php7.0-fpm<7.0.33-0ubuntu0.16.04.7
7.0.33-0ubuntu0.16.04.7
Ubuntu Ubuntu=16.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/libapache2-mod-php7.3 to a version that resolves this vulnerability.

    Fixed in 7.3.11-0ubuntu0.19.10.1
  2. Upgrade

    Upgrade ubuntu/php7.3-cgi to a version that resolves this vulnerability.

    Fixed in 7.3.11-0ubuntu0.19.10.1
  3. Upgrade

    Upgrade ubuntu/php7.3-cli to a version that resolves this vulnerability.

    Fixed in 7.3.11-0ubuntu0.19.10.1
  4. Upgrade

    Upgrade ubuntu/php7.3-fpm to a version that resolves this vulnerability.

    Fixed in 7.3.11-0ubuntu0.19.10.1
  5. Upgrade

    Upgrade ubuntu/libapache2-mod-php7.2 to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.19.04.1
  6. Upgrade

    Upgrade ubuntu/php7.2-cgi to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.19.04.1
  7. Upgrade

    Upgrade ubuntu/php7.2-cli to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.19.04.1
  8. Upgrade

    Upgrade ubuntu/php7.2-fpm to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.19.04.1
  9. Upgrade

    Upgrade ubuntu/libapache2-mod-php7.2 to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.18.04.1
  10. Upgrade

    Upgrade ubuntu/php7.2-cgi to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.18.04.1
  11. Upgrade

    Upgrade ubuntu/php7.2-cli to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.18.04.1
  12. Upgrade

    Upgrade ubuntu/php7.2-fpm to a version that resolves this vulnerability.

    Fixed in 7.2.24-0ubuntu0.18.04.1
  13. Upgrade

    Upgrade ubuntu/libapache2-mod-php7.0 to a version that resolves this vulnerability.

    Fixed in 7.0.33-0ubuntu0.16.04.7
  14. Upgrade

    Upgrade ubuntu/php7.0-cgi to a version that resolves this vulnerability.

    Fixed in 7.0.33-0ubuntu0.16.04.7
  15. Upgrade

    Upgrade ubuntu/php7.0-cli to a version that resolves this vulnerability.

    Fixed in 7.0.33-0ubuntu0.16.04.7
  16. Upgrade

    Upgrade ubuntu/php7.0-fpm to a version that resolves this vulnerability.

    Fixed in 7.0.33-0ubuntu0.16.04.7

Event History

Oct 28, 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 USN-4166-1?

USN-4166-1 is a security vulnerability in PHP that allows remote attackers to execute arbitrary code.

2

How does the PHP vulnerability affect me?

The PHP vulnerability affects users who have the affected versions of PHP installed and are using FastCGI configurations.

3

What is the severity of USN-4166-1?

The severity of USN-4166-1 is high.

4

How can I fix the PHP vulnerability?

To fix the PHP vulnerability, update your PHP installations to version 7.3.11-0ubuntu0.19.10.1 (for Ubuntu 19.10), 7.2.24-0ubuntu0.19.04.1 (for Ubuntu 19.04), 7.2.24-0ubuntu0.18.04.1 (for Ubuntu 18.04), or 7.0.33-0ubuntu0.16.04.7 (for Ubuntu 16.04).

5

Where can I find more information about USN-4166-1?

More information about USN-4166-1 can be found on the Ubuntu Security Notices website and the provided references.

Company

Resources

Contact

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