Vulnerability identifier: #VU34121
Vulnerability risk: Medium
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:
CWE-ID:
CWE-416
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 compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the "phar_parse_zipfile" function. A remote attacker can can cause a denial of service (DoS) condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
PHP: 7.2.0 - 7.2.32, 7.3.0 - 7.3.20, 7.4.0 - 7.4.8
External links
http://bugs.php.net/bug.php?id=79797
http://www.php.net/ChangeLog-7.php#PHP_7_3
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.