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CVE-2017-6441

UnknownEPSS 1.83%

Last modified

CVE-2017-6441 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.83% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.83%

76.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhpPhp7.1.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2017-6441?
Severity scoring for CVE-2017-6441 is pending analysis. The EPSS model estimates a 1.83% probability of exploitation in the next 30 days.
How do I fix CVE-2017-6441?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST