CVE-2016-4541

Name of the Vulnerable Software and Affected Versions PHP versions prior to 5.5.35 PHP versions 5.6.x prior to 5.6.21 PHP versions 7.x prior to 7.0.6

Description The issue allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset. This is due to a buffer over-read in the grapheme strpos function.

Recommendations For PHP versions prior to 5.5.35, update to version 5.5.35 or later. For PHP versions 5.6.x prior to 5.6.21, update to version 5.6.21 or later. For PHP versions 7.x prior to 7.0.6, update to version 7.0.6 or later.