1. Ubuntu Security Notices
  2. USN-3702-2

USN-3702-2: PHP vulnerability

Publication date

5 July 2018

Overview

PHP could be made to crash or run programs if it opened a specially crafted file.

Releases

Packages

  • php7.2 - HTML-embedded scripting language interpreter

Details

USN-3702-1 fixed a vulnerability in PHP. PHP 7.2.7 did not actually include
the fix for CVE-2018-12882. This update adds a backported patch to correct
the issue.

We apologize for the inconvenience.

Original advisory details:

It was discovered that PHP incorrectly handled exif tags in certain images.
A remote attacker could use this issue to cause PHP to crash, resulting in
a denial of service, or possibly execute arbitrary code.

USN-3702-1 fixed a vulnerability in PHP. PHP 7.2.7 did not actually include
the fix for CVE-2018-12882. This update adds a backported patch to correct
the issue.

We apologize for the inconvenience.

Original advisory details:

It was discovered that PHP incorrectly handled exif tags in certain images.
A remote attacker could use this issue to cause PHP to crash, resulting in
a denial of service, or possibly execute arbitrary code.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic libapache2-mod-php7.2 –  7.2.7-0ubuntu0.18.04.2
php7.2-cgi –  7.2.7-0ubuntu0.18.04.2
php7.2-cli –  7.2.7-0ubuntu0.18.04.2
php7.2-fpm –  7.2.7-0ubuntu0.18.04.2

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References

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