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CVE-2016-5093

8.6 · HIGH

The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allow…

Published Aug 7, 2016CWE-125EPSS 5.34%

Overview

CVE-2016-5093 is a high-severity vulnerability. It was published on August 7, 2016 and has a CVSS 3.0 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.

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

Refphp.net/ChangeLog-5.phpRefphp.net/ChangeLog-7.phpRefrhn.redhat.com/errata/RHSA-2016-2750.htmlRefwww.debian.org/security/2016/dsa-3602Refwww.openwall.com/lists/oss-security/2016/05/26/3Refwww.securityfocus.com/bid/90946Refbugs.php.net/bug.php?id=72241GitHubgithub.com/php/php-src/commit/97eff7eb57fc2320c267a949cffd622c38712484?w=1Refh20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Refphp.net/ChangeLog-5.php

How CyberStrike helps

Frequently asked questions

What is CVE-2016-5093?

CVE-2016-5093 is a high-severity vulnerability. It was published on August 7, 2016 and has a CVSS 3.0 base score of 8.6 (HIGH).

How severe is CVE-2016-5093?

This vulnerability has a CVSS 3.0 base score of 8.6, 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-2016-5093?

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-2016-5093?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-5093 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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