CVE-2015-0231
Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.37, 5.5.x before 5.5.21, and 5.6.x before 5.6.5 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate numerical keys within the serialized properties of an object. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-8142.
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
- 44.4% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2015-0253)
- Published
- January 27, 2015
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2015-0253 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
- 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
- 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
- php / php
- php / php
- php / php
- php / php
- php / php
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- php / php
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- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
and 34 more…
References
- http://advisories.mageia.org/MGASA-2015-0040.html
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
- 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://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/2015/dsa-3195
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:032
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:079
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.php.net/ChangeLog-5.php
- http://www.securityfocus.com/bid/72539
- https://bugs.php.net/bug.php?id=68710(Exploit, Vendor Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=1185397
- https://github.com/php/php-src/commit/b585a3aed7880a5fa5c18e2b838fc96f40e075bd(Patch, Vendor Advisory)
- https://security.gentoo.org/glsa/201503-03
- https://security.gentoo.org/glsa/201606-10
- https://support.apple.com/HT205267
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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