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Servers and applications

CVE-2017-12934

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.

Severity
High 7.5
Published
18 Aug 2017
Last changed
17 Jun 2026
Added to UpHeron
14 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Version 7.1.6
  • Version 7.1.5
  • Version 7.1.4
  • Version 7.1.3
All 28 release lines
  • Version 7.0.0
  • Version 7.0.1
  • Version 7.0.2
  • Version 7.0.3
  • Version 7.0.4
  • Version 7.0.5
  • Version 7.0.6
  • Version 7.0.7
  • Version 7.0.8
  • Version 7.0.9
  • Version 7.0.10
  • Version 7.0.11
  • Version 7.0.12
  • Version 7.0.13
  • Version 7.0.14
  • Version 7.0.15
  • Version 7.0.16
  • Version 7.0.17
  • Version 7.0.18
  • Version 7.0.19
  • Version 7.0.20
  • Version 7.1.0
  • Version 7.1.1
  • Version 7.1.2
  • Version 7.1.3
  • Version 7.1.4
  • Version 7.1.5
  • Version 7.1.6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-12934
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-12934