Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 461
Alerts This Week
Warning Icon 1 461

Ubuntu 16.04 LTS USN-2984-1 Critical: PHP Issues and Fixes

ubuntu
Calendar Grey May 24, 2016
Scroller Ubuntu
To ensure your system's safety, promptly upgrade your PHP packages on Ubuntu in order to fix various severe security vulnerabilities and reduce potential threats efficiently.
Several security issues were fixed in PHP.

Summary

Several security issues were fixed in PHP.

Software Description:

- php7.0: HTML-embedded scripting language interpreter

- php5: HTML-embedded scripting language interpreter

Details:

It was discovered that the PHP Fileinfo component incorrectly handled

certain magic files. An attacker could use this issue to cause PHP to

crash, resulting in a denial of service, or possibly execute arbitrary

code. This issue only affected Ubuntu 16.04 LTS. (CVE-2015-8865)

Hans Jerry Illikainen discovered that the PHP Zip extension incorrectly

handled certain malformed Zip archives. A remote attacker could use this

issue to cause PHP to crash, resulting in a denial of service, or possibly

execute arbitrary code. This issue only affected Ubuntu 16.04 LTS.

(CVE-2016-3078)

It was discovered that PHP incorrectly handled invalid indexes in the

SplDoublyLinkedList class. An attacker could use this issue to cause PHP to

crash, resulting in a denial of service, or possibly execute a...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical issue software update arbitrary code execution Ubuntu PHP

Update Instructions

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

Ubuntu 16.04 LTS:
  libapache2-mod-php7.0           7.0.4-7ubuntu2.1
  php7.0-cgi                      7.0.4-7ubuntu2.1
  php7.0-cli                      7.0.4-7ubuntu2.1
  php7.0-fpm                      7.0.4-7ubuntu2.1

Ubuntu 15.10:
  libapache2-mod-php5             5.6.11+dfsg-1ubuntu3.4
  php5-cgi                        5.6.11+dfsg-1ubuntu3.4
  php5-cli                        5.6.11+dfsg-1ubuntu3.4
  php5-fpm                        5.6.11+dfsg-1ubuntu3.4

Ubuntu 14.04 LTS:
  libapache2-mod-php5             5.5.9+dfsg-1ubuntu4.17
  php5-cgi                        5.5.9+dfsg-1ubuntu4.17
  php5-cli                        5.5.9+dfsg-1ubuntu4.17
  php5-fpm                        5.5.9+dfsg-1ubuntu4.17

Ubuntu 12.04 LTS:
  libapache2-mod-php5             5.3.10-1ubuntu3.23
  php5-cgi                        5.3.10-1ubuntu3.23
  php5-cli                        5.3.10-1ubuntu3.23
  php5-fpm                        5.3.10-1ubuntu3.23

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

References

https://ubuntu.com/security/notices/USN-2984-1

CVE-2015-8865, CVE-2016-3078, CVE-2016-3132, CVE-2016-4070,

CVE-2016-4071, CVE-2016-4072, CVE-2016-4073, CVE-2016-4342,

CVE-2016-4343, CVE-2016-4537, CVE-2016-4538, CVE-2016-4539,

CVE-2016-4540, CVE-2016-4541, CVE-2016-4542, CVE-2016-4543,

CVE-2016-4544

Severity
critical
Lowest
Low
Medium
High
Critical

May 24, 2016

Topics%20covered

Topics Covered

security advisory denial of service critical issue software update arbitrary code execution Ubuntu PHP

Package Information

https://launchpad.net/ubuntu/+source/php7.0/7.0.4-7ubuntu2.1
https://launchpad.net/ubuntu/+source/php5/5.6.11+dfsg-1ubuntu3.4
https://launchpad.net/ubuntu/+source/php5/5.5.9+dfsg-1ubuntu4.17
https://launchpad.net/ubuntu/+source/php5/5.3.10-1ubuntu3.23

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.