The grapheme_strpos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.
lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.html
lists.opensuse.org/opensuse-updates/2016-05/msg00086.html
lists.opensuse.org/opensuse-updates/2016-06/msg00027.html
php.net/ChangeLog-5.php
php.net/ChangeLog-7.php
rhn.redhat.com/errata/RHSA-2016-2750.html
www.debian.org/security/2016/dsa-3602
www.openwall.com/lists/oss-security/2016/05/05/21
www.securityfocus.com/bid/90172
bugs.php.net/bug.php?id=72061
git.php.net/?p=php-src.git%3Ba=commit%3Bh=fd9689745c44341b1bd6af4756f324be8abba2fb
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
security.gentoo.org/glsa/201611-22