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

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-05-03 · updated 2026-06-17
Weakness: CWE-787

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.

Affected products

PHP Group PHP Imagick extension: from 3.3.0 through 3.4.4

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00016.html
http://www.securityfocus.com/bid/108292
https://bugs.php.net/bug.php?id=77791
https://github.com/CVEProject/cvelist/pull/1964
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MQ7WJA25YF2R2LRALK4QEYWUHHJPSUD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BU66V7QJKD32RXLY5J7Z5NZH4V3VV524/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FME5ZG7DDYWUPPHTTAFJB5OFFCPXYHPS/
https://seclists.org/bugtraq/2019/Nov/39
https://security.gentoo.org/glsa/202003-38
https://usn.ubuntu.com/4586-1/
https://www.debian.org/security/2019/dsa-4576
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00016.html

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