CVE-2017-6441

HIGH

PHP 7.1.2 - Denial of Service via NULL Pointer Dereference in _zval_get_long_func_ex

Title source: llm
STIX 2.1

Description

The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.

References (2)

Core 2
Core References
Issue Tracking x_refsource_misc
https://bugs.php.net/bug.php?id=74146

Scores

CVSS v3 7.5
EPSS 0.0042
EPSS Percentile 62.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (1)
php/php 7.1.2
Published Apr 03, 2017
Tracked Since Feb 18, 2026