CVE-2019-11037 Out of bounds memory write in PHP Imagick extension

Medium 4.9 Published Updated

An out-of-bounds memory write in the PHP Imagick extension allows attackers to execute arbitrary code via crafted input.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2019-11037?

CVE-2019-11037 is a medium-severity memory corruption vulnerability in PHP Imagick extension, published on 3 May 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In PHP imagick extension in versions between 3.3.0 and 3.4.4, writing to an array of values in ImagickKernel::fromMatrix() function did not check that the address will be within the allocated array. This could lead to out of bounds write to memory if the function is called with the data controlled by untrusted party.

Weakness: CWE-787

Which versions are affected by CVE-2019-11037?

It affects 1 product.

Linux distribution packages (3)
php7-imagick SUSE:Package Hub 12All versions3.4.4-bp151.2.3.1
php7-imagick SUSE:Package Hub 15 SP1All versions3.4.4-bp151.2.3.1
php7-imagick openSUSE:Leap 15.1All versions3.4.4-bp151.2.3.1

Products include Php Imagick.

How do I fix CVE-2019-11037?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-11037 being exploited?

There is no known exploitation of CVE-2019-11037 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-11037, DSA-4576-1, GHSA-c46f-p363-f93x, UBUNTU-CVE-2019-11037, USN-4586-1, USN-4586-2 and 1 more.

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