#VU15296 Null pointer dereference in PHP

Vulnerability identifier: #VU15296

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-476

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 due to NULL pointer dereference in the default value for RegexIterator's pregFlags. A remote attacker can cause the service to crash.

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

Vulnerable software versions

PHP: 7.1.0 - 7.1.21, 7.2.0 - 7.2.9

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External links
https://bugs.php.net/bug.php?id=68175

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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.