#VU110413 Input validation error in PHP - CVE-2007-1889

Vulnerability identifier: #VU110413

Vulnerability risk: Medium

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

CVE-ID: CVE-2007-1889

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Integer signedness error in the _zend_mm_alloc_int function in the Zend Memory Manager in PHP 5.2.0 allows remote attackers to execute arbitrary code via a large emalloc request, related to an incorrect signed long cast, as demonstrated via the HTTP SOAP client in PHP, and via a call to msg_receive with the largest positive integer value of maxsize.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 5.2.0

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External links
https://secunia.com/advisories/25056
https://secunia.com/advisories/25062
https://www.debian.org/security/2007/dsa-1283
https://www.novell.com/linux/security/advisories/2007_32_php.html
https://www.php-security.org/MOPB/MOPB-43-2007.html
https://www.php-security.org/MOPB/MOPB-44-2007.html
https://www.securityfocus.com/bid/23238
https://exchange.xforce.ibmcloud.com/vulnerabilities/33770

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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.