Vulnerability identifier: #VU9467

Vulnerability risk: Low

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-843

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system

The weakness exists due to type confusion in exif_read_data(). A remote attacker can supply a specially crafted TIFF image, trigger heap overflow in debug mode and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 7.2.0.

Vulnerable software versions

PHP: 7.0.0 - 7.0.26, 7.1.0 - 7.1.11

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External links
http://bugs.php.net/bug.php?id=71534

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.