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    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.

    Published:Jan 1, 2015
    Last Modified:Apr 12, 2025
    EPS:Jan 27, 2015
    EPSS Score:0.86183
    CVSS Score:7.5

    Affected Products

    Vendor
    Php
    Product
    Php
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Software Collections

    Exploits

    https://bugs.php.net/bug.php?id=68710https://bugs.php.net/bug.php?id=68710https://github.com/3xp10it/php_cve-2014-8142_cve-2015-0231

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-14355 (CVSS 5.6) — In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRA…
    CVE-2026-7263 (CVSS 6.3) — In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() method may process the XML data in…
    CVE-2026-6104 (CVSS 6.3) — In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, when an encoding name containing an embedded NUL b…
    CVE-2026-7258 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some fu…
    CVE-2026-6722 (CVSS 9.5) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the SOA…
    CVE-2026-7259 (CVSS 2.1) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, a misma…
    CVE-2026-7261 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when So…
    CVE-2026-7262 (CVSS 2.9) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a …
    CVE-2025-14179 (CVSS 7.4) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the PDO…
    CVE-2026-7568 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the met…

    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
    https://bugzilla.redhat.com/show_bug.cgi?id=1185397
    https://github.com/php/php-src/commit/b585a3aed7880a5fa5c18e2b838fc96f40e075bd
    https://security.gentoo.org/glsa/201503-03
    https://security.gentoo.org/glsa/201606-10
    https://support.apple.com/HT205267
    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
    https://bugzilla.redhat.com/show_bug.cgi?id=1185397
    https://github.com/php/php-src/commit/b585a3aed7880a5fa5c18e2b838fc96f40e075bd
    https://security.gentoo.org/glsa/201503-03
    https://security.gentoo.org/glsa/201606-10
    https://support.apple.com/HT205267

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High