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USN-4586-1: PHP ImageMagick vulnerability

20 October 2020

PHP ImageMagick could be made to crash if it received specially crafted input.



  • php-imagick - PHP extension to create and modify images using the ImageMagick API


It was discovered that PHP ImageMagick extension didn't check the address used
by an array. An attacker could use this issue to cause PHP ImageMagick to
crash, resulting in a denial of service.

Update instructions

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

Ubuntu 18.04

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