Vulnerability identifier: #VU7684

Vulnerability risk: High

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-190

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 or execute arbitrary code.

The weakness exists due to integer overflow in oci_bind_array_by_name. A remote attacker can trigger memory corruption, cause the system to crash or execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 7.0.22.

Vulnerable software versions

PHP: 7.0.0 - 7.0.21, 5.6.0 - 5.6.30, 5.5.0 - 5.5.38, 5.4.0 - 5.4.44, 4.4.2, 5.1 - 5.1.6, 5.3.0 - 5.3.27, 5.2.0 - 5.2.17, 5.0 - 5.0.5

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External links
http://bugs.php.net/bug.php?id=74625

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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.