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Servers and applications

CVE-2017-5340

Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocations, which allows remote attackers to execute arbitrary code or cause a denial of service (integer overflow, uninitialized memory access, and use of arbitrary destructor function pointers) via crafted serialized data.

Severity
Critical 9.8
Published
11 Jan 2017
Last changed
17 Jun 2026
Added to UpHeron
14 Oct 2026
Fixed in
7.0.15, 7.1.1
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • From 7.0.0 before 7.0.15
  • From 7.1.0 before 7.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-5340
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-5340