Vulnerability identifier: #VU15297

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-401

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 obtain potentially sensitive information or cause DoS condition on the target system.

The weakness due to array_reduce memory leak when an exception is thrown in callback and escapes outside array_reduce. A remote attacker can trigger memory leak and gain access to arbitrary data or cause the service to crash.

Mitigation
The vulnerability has been fixed in the version 7.1.22, 7.2.10.

Vulnerable software versions

PHP: 7.2.0 - 7.2.9, 7.1.0 - 7.1.21

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External links
http://bugs.php.net/bug.php?id=76778

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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.