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Ubuntu 18.04 LTS USN-3766-1 Critical: PHP Denial Of Service

ubuntu
Calendar Grey September 18, 2018
Dist Ubuntu Esm H88
Essential upgrade for Python vulnerabilities in Debian halting potential DoS threats. Uncover the full release notes within.
Several security issues were fixed in PHP.

Summary

Several security issues were fixed in PHP.

Software Description:

- php7.2: HTML-embedded scripting language interpreter

- php7.0: HTML-embedded scripting language interpreter

- php5: HTML-embedded scripting language interpreter

Details:

It was discovered that PHP incorrectly handled restarting certain child

processes when php-fpm is used. A remote attacker could possibly use this

issue to cause a denial of service. This issue was only addressed in Ubuntu

18.04 LTS. (CVE-2015-9253)

It was discovered that PHP incorrectly handled certain exif tags in JPEG

images. A remote attacker could possibly use this issue to cause PHP to

crash, resulting in a denial of service. (CVE-2018-14851, CVE-2018-14883)

Update Instructions

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

Ubuntu 18.04 LTS:
  libapache2-mod-php7.2           7.2.10-0ubuntu0.18.04.1
  php7.2-cgi                      7.2.10-0ubuntu0.18.04.1
  php7.2-cli                      7.2.10-0ubuntu0.18.04.1
  php7.2-fpm                      7.2.10-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  libapache2-mod-php7.0           7.0.32-0ubuntu0.16.04.1
  php7.0-cgi                      7.0.32-0ubuntu0.16.04.1
  php7.0-cli                      7.0.32-0ubuntu0.16.04.1
  php7.0-fpm                      7.0.32-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  libapache2-mod-php5             5.5.9+dfsg-1ubuntu4.26
  php5-cgi                        5.5.9+dfsg-1ubuntu4.26
  php5-cli                        5.5.9+dfsg-1ubuntu4.26
  php5-fpm                        5.5.9+dfsg-1ubuntu4.26

In Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, this update uses a new upstream
release, which includes additional bug fixes.

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

References

https://ubuntu.com/security/notices/USN-3766-1

CVE-2015-9253, CVE-2018-14851, CVE-2018-14883

Severity
critical
Lowest
Low
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Critical

September 18, 2018

Package Information

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