CVE-2014-8142
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.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- EPSS score
- 55.1% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2014-7985)
- Published
- December 20, 2014
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2014-7985 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- php / php
- php / php
- php / php
- php / php
- php / php
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- php / php
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- php / php
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- php / php
- php / php
- php / php
- php / php
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- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
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- php / php
- php / php
- php / php
- php / php
- php / php
References
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=630f9c33c23639de85c3fd306b209b538b73b4c9
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00029.html
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00079.html
- http://marc.info/?l=bugtraq&m=143403519711434&w=2
- http://marc.info/?l=bugtraq&m=143748090628601&w=2
- http://marc.info/?l=bugtraq&m=144050155601375&w=2
- http://php.net/ChangeLog-5.php(Vendor Advisory)
- http://rhn.redhat.com/errata/RHSA-2015-1053.html
- http://rhn.redhat.com/errata/RHSA-2015-1066.html
- http://rhn.redhat.com/errata/RHSA-2015-1135.html
- http://www.debian.org/security/2014/dsa-3117
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securityfocus.com/bid/71791
- https://bugs.php.net/bug.php?id=68594(Exploit, Vendor Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=1175718
- https://security.gentoo.org/glsa/201503-03
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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