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    CVE-2017-12932

    ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

    Published:Feb 20, 2017
    Last Modified:Apr 20, 2025
    EPS:Aug 18, 2017
    EPSS Score:0.02291
    CVSS Score:9.8

    Affected Products

    Vendor
    Php
    Product
    Php
    Vendor
    Redhat
    Product
    Rhel Software Collections

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://php.net/ChangeLog-7.php
    http://www.securityfocus.com/bid/100427
    https://access.redhat.com/errata/RHSA-2018:1296
    https://access.redhat.com/errata/RHSA-2019:2519
    https://bugs.php.net/bug.php?id=74103
    https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
    https://security.gentoo.org/glsa/201709-21
    https://security.netapp.com/advisory/ntap-20180112-0001/
    https://www.debian.org/security/2018/dsa-4080
    http://php.net/ChangeLog-7.php
    http://www.securityfocus.com/bid/100427
    https://access.redhat.com/errata/RHSA-2018:1296
    https://access.redhat.com/errata/RHSA-2019:2519
    https://bugs.php.net/bug.php?id=74103
    https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
    https://security.gentoo.org/glsa/201709-21
    https://security.netapp.com/advisory/ntap-20180112-0001/
    https://www.debian.org/security/2018/dsa-4080

    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