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CVE-2016-7416

7.5 · HIGH

ext/intl/msgformat/msgformat_format.c in PHP before 5.6.26 and 7.x before 7.0.11 does not properly restrict the locale length provided to the Locale class in the ICU library, which allows remote at…

Published Sep 17, 2016CWE-119EPSS 6.67%

Overview

CVE-2016-7416 is a high-severity vulnerability. It was published on September 17, 2016 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

ext/intl/msgformat/msgformat_format.c in PHP before 5.6.26 and 7.x before 7.0.11 does not properly restrict the locale length provided to the Locale class in the ICU library, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a MessageFormatter::formatMessage call with a long first argument.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2016/09/15/10Refwww.php.net/ChangeLog-5.phpRefwww.php.net/ChangeLog-7.phpRefwww.securityfocus.com/bid/93008Refwww.securitytracker.com/id/1036836Refaccess.redhat.com/errata/RHSA-2018:1296Refbugs.php.net/bug.php?id=73007GitHubgithub.com/php/php-src/commit/6d55ba265637d6adf0ba7e9c9ef11187d1ec2f5b?w=1Refsecurity.gentoo.org/glsa/201611-22Refwww.tenable.com/security/tns-2016-19

How CyberStrike helps

Frequently asked questions

What is CVE-2016-7416?

CVE-2016-7416 is a high-severity vulnerability. It was published on September 17, 2016 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2016-7416?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2016-7416?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2016-7416?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-7416 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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