Vulnerability identifier: #VU222
Vulnerability risk: Low
CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-401
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 disclose potentially sensitive information.
The vulnerability exists due to mbc_to_code function performs oob access, if pattern is shorter than 6 characters. A remote unauthenticated attacker can cause an out-of-bounds read error in mb_ereg_replace - mbc_to_code.
Successful exploitation of this vulnerability may result in memory coruption and disclosure of memory contents.
Mitigation
Install the latest version: (7.0.9).
Vulnerable software versions
PHP: 7.0.0 - 7.0.8
External links
http://bugs.php.net/bug.php?id=72405
http://php.net/ChangeLog-5.php#5.5.38
http://php.net/ChangeLog-5.php#5.6.24
http://php.net/ChangeLog-7.php#7.0.9
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.