Vulnerability identifier: #VU16907
Vulnerability risk: Low
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-617
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 CFG assertion failure on multiple finalizing switch frees in one block. A remote attacker can supply a specially crafted input and cause the service to crash.
Mitigation
The vulnerability has been fixed in the versions 7.2.14, 7.3.1.
Vulnerable software versions
PHP: 7.2.0 - 7.2.13, 7.3.0 - 7.3.0beta3
External links
http://bugs.php.net/bug.php?id=77215
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. However, proof of concept for this vulnerability is available.