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
References
Related Vulnerabilities
WordPress Plugin Work The Flow File Upload Arbitrary File Upload (2.5.2)
YOURLS Access of Resource Using Incompatible Type ('Type Confusion') Vulnerability (CVE-2019-14537)
WordPress 4.7.x Multiple Vulnerabilities (4.7 - 4.7.18)
Moodle Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2012-6104)