This update for qpdf fixes the following issues: qpdf was updated to 7.1.1. Security issues fixed: - CVE-2017-11627: A stack-consumption vulnerability which allows attackers to cause DoS . - CVE-2017-11625: A stack-consumption vulnerability which allows attackers to cause DoS . - CVE-2017-11626: A stack-consumption vulnerability which allows attackers to cause DoS . - CVE-2017-11624: A stack-consumption vulnerability which allows attackers to cause DoS . - CVE-2017-12595: Stack overflow when processing deeply nested arrays and dictionaries . - CVE-2017-9209: Remote attackers can cause a denial of service via a crafted PDF document . - CVE-2017-9210: Remote attackers can cause a denial of service via a crafted PDF document . - CVE-2017-9208: Remote attackers can cause a denial of service via a crafted PDF document . * Check release notes for detailed bug fixes