Issue Overview: An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A stack out-of-bounds read occurs in mbc_enc_len() during regular expression searching. Invalid handling of reg->dmin in forward_search_range() could result in an invalid pointer dereference, as an out-of-bounds read from a stack buffer. (CVE-2017-9227) Affected Packages: php Note: This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories. Issue Correction: Run yum update php to update your system. New Packages: aarch64:     php-5.4.16-46.amzn2.0.5.aarch64     php-cli-5.4.16-46.amzn2.0.5.aarch64     php-fpm-5.4.16-46.amzn2.0.5.aarch64     php-common-5.4.16-46.amzn2.0.5.aarch64     php-devel-5.4.16-46.amzn2.0.5.aarch64     php-ldap-5.4.16-46.amzn2.0.5.aarch64     php-pdo-5.4.16-46.amzn2.0.5.aarch64     php-mysqlnd-5.4.16-46.amzn2.0.5.aarch64     php-pgsql-5.4.16-46.amzn2.0.5.aarch64     php-process-5.4.16-46.amzn2.0.5.aarch64     php-odbc-5.4.16-46.amzn2.0.5.aarch64     php-soap-5.4.16-46.amzn2.0.5.aarch64     php-snmp-5.4.16-46.amzn2.0.5.aarch64     php-xml-5.4.16-46.amzn2.0.5.aarch64     php-xmlrpc-5.4.16-46.amzn2.0.5.aarch64     php-mbstring-5.4.16-46.amzn2.0.5.aarch64     php-gd-5.4.16-46.amzn2.0.5.aarch64     php-bcmath-5.4.16-46.amzn2.0.5.aarch64     php-dba-5.4.16-46.amzn2.0.5.aarch64    …Read More