What is CVE-2017-6441?

CVE-2017-6441 is a high-severity vulnerability in Php, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2017-04-03.

How severe is CVE-2017-6441?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Php

CVE-2017-6441

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.

EPSS: 0.018 (76.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Php — versions 7.1.2
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (x_refsource_MISC, Issue Tracking)
cve@mitre.org (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2017-6441?: CVE-2017-6441 is a high-severity vulnerability in Php, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2017-04-03.
How severe is CVE-2017-6441?: High severity. CVSS v3 base score is 7.5 out of 10.