CVE-2017-12934

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    CVE-2017-12934

    Published: 18 Aug 2017Last Modified: 7 Aug 2026

    Summary:

    Details: ext/standard/var_unserializer.re in PHP 7.0.x before 7.0.21 and 7.1.x before 7.1.7 is prone to a heap use after free while unserializing untrusted data, related to the zval_get_type function in Zend/zend_types.h. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

    References: http://php.net/ChangeLog-7.php, http://www.securityfocus.com/bid/100428, https://access.redhat.com/errata/RHSA-2018:1296, https://www.debian.org/security/2018/dsa-4080, https://bugs.php.net/bug.php?id=74101

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 60fffd296abce5fc071f3c173c25a2696cf683c6
    Fixed -None

    Affected versions

    7.0.0
    7.0.1
    7.0.10
    7.0.11
    7.0.12
    7.0.13
    7.0.14
    7.0.15
    7.0.16
    7.0.17
    7.0.18
    7.0.19
    7.0.2
    7.0.20
    7.0.3
    7.0.4
    7.0.5
    7.0.6
    7.0.7
    7.0.8
    7.0.9

    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