The PDO adapters in Zend Framework before 1.12.16 do not filer null bytes in SQL statements, which allows remote attackers to execute arbitrary SQL commands via a crafted query.
framework.zend.com/security/advisory/ZF2015-08
www.debian.org/security/2015/dsa-3369
www.openwall.com/lists/oss-security/2015/09/30/6
www.openwall.com/lists/oss-security/2015/09/30/8
www.openwall.com/lists/oss-security/2015/10/11/3
www.securityfocus.com/bid/76784
github.com/zendframework/zf1
nvd.nist.gov/vuln/detail/CVE-2015-7695