Vulnerability identifier: #VU17453

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-665

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 cause DoS condition on the target system.

The weakness exists due to parse_str segfaults when inserting item into existing array. A remote attacker can cause the service to crash.

Mitigation
Update to version 7.2.15, 7.3.2.

Vulnerable software versions

PHP: 7.3.0 - 7.3.1, 7.2.0 - 7.2.14

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External links
http://bugs.php.net/bug.php?id=77439

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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.