CVE-2017-6441

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.36%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.php.net/bug.php?id=74146 issue tracking
https://github.com/php/php-src/pull/2396 patch

Frequently Asked Questions

What is the severity of CVE-2017-6441?
CVE-2017-6441 has been scored as a high severity vulnerability.
How to fix CVE-2017-6441?
To fix CVE-2017-6441, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-6441 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-6441 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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