The ZIP signature-verification feature in PHP before 5.6.26 and 7.x before 7.0.11 does not ensure that the uncompressed_filesize field is large enough, which allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via a crafted PHAR archive, related to ext/phar/util.c and ext/phar/zip.c.
www.openwall.com/lists/oss-security/2016/09/15/10
www.php.net/ChangeLog-5.php
www.php.net/ChangeLog-7.php
www.securityfocus.com/bid/93004
www.securitytracker.com/id/1036836
access.redhat.com/errata/RHSA-2018:1296
bugs.php.net/bug.php?id=72928
github.com/php/php-src/commit/0bfb970f43acd1e81d11be1154805f86655f15d5?w=1
security.gentoo.org/glsa/201611-22
www.tenable.com/security/tns-2016-19