fkie_cve-2017-12934
Vulnerability from fkie_nvd
Published
2017-08-18 03:29
Modified
2025-04-20 01:37
Summary
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.
Impacted products
Vendor Product Version
php php 7.0.0
php php 7.0.1
php php 7.0.2
php php 7.0.3
php php 7.0.4
php php 7.0.5
php php 7.0.6
php php 7.0.7
php php 7.0.8
php php 7.0.9
php php 7.0.10
php php 7.0.11
php php 7.0.12
php php 7.0.13
php php 7.0.14
php php 7.0.15
php php 7.0.16
php php 7.0.17
php php 7.0.18
php php 7.0.19
php php 7.0.20
php php 7.1.0
php php 7.1.1
php php 7.1.2
php php 7.1.3
php php 7.1.4
php php 7.1.5
php php 7.1.6



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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "ext/standard/var_unserializer.re en PHP en versiones 7.0.x anteriores a la 7.0.21 y versiones 7.1.x anteriores a la 7.1.7 es propenso a un uso de memoria din\u00e1mica antes de liberaci\u00f3n (heap use after free) al deserializar datos que no son de confianza. Esto est\u00e1 relacionado con la funci\u00f3n zval_get_type en Zend/zend_types.h. La explotaci\u00f3n de este problema puede tener un impacto sin especificar en la integridad de PHP."
    }
  ],
  "id": "CVE-2017-12934",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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          "confidentialityImpact": "NONE",
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          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.0"
        },
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        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2017-08-18T03:29:00.260",
  "references": [
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      "tags": [
        "Vendor Advisory"
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      "url": "http://php.net/ChangeLog-7.php"
    },
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      "source": "cve@mitre.org",
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      "url": "http://www.securityfocus.com/bid/100428"
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      "url": "https://access.redhat.com/errata/RHSA-2018:1296"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
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      "url": "https://bugs.php.net/bug.php?id=74101"
    },
    {
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      "url": "https://www.debian.org/security/2018/dsa-4080"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
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          "value": "CWE-416"
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}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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