CVE-2014-8142

PHP < 5.4.36, 5.5.x < 5.5.20, 5.6.x < 5.6.4 - Use-After-Free via Unserialize Duplicate Keys

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2014-8142. PoCs published by 3xp10it.

AI-analyzed exploit summary The repository contains only a Dockerfile that downloads and compiles PHP 5.4.34 but lacks any exploit code or technical details for CVE-2014-8142. It appears to be an incomplete or placeholder setup for testing the vulnerability.

Description

Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.36, 5.5.x before 5.5.20, and 5.6.x before 5.6.4 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate keys within the serialized properties of an object, a different vulnerability than CVE-2004-1019.

Exploits (1)

nomisec STUB 2 stars
by 3xp10it · poc
https://github.com/3xp10it/php_cve-2014-8142_cve-2015-0231

The repository contains only a Dockerfile that downloads and compiles PHP 5.4.34 but lacks any exploit code or technical details for CVE-2014-8142. It appears to be an incomplete or placeholder setup for testing the vulnerability.

Classification
Stub 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: PHP 5.4.34
No auth needed
Prerequisites: Docker environment
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (17)

Core 17
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/71791
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1175718
Mailing List vendor-advisory x_refsource_hp
http://marc.info/?l=bugtraq&m=144050155601375&w=2
Mailing List vendor-advisory x_refsource_hp
http://marc.info/?l=bugtraq&m=143748090628601&w=2
Mailing List vendor-advisory x_refsource_hp
http://marc.info/?l=bugtraq&m=143403519711434&w=2
Vendor Advisory x_refsource_confirm
http://php.net/ChangeLog-5.php
Mailing List vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2015-02/msg00079.html
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2014/dsa-3117
Exploit, Vendor Advisory x_refsource_confirm
https://bugs.php.net/bug.php?id=68594
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201503-03
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2015-1135.html
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2015-1053.html
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2015-1066.html

Scores

EPSS 0.5317
EPSS Percentile 98.9%

Details

Status published
Products (25)
php/php 5.5.0 (13 CPE variants)
php/php 5.5.1
php/php 5.5.2
php/php 5.5.3
php/php 5.5.4
php/php 5.5.5
php/php 5.5.6
php/php 5.5.7
php/php 5.5.8
php/php 5.5.9
... and 15 more
Published Dec 20, 2014
Tracked Since Feb 18, 2026