This update for patch fixes several issues. These security issues were fixed: - CVE-2018-1000156: patch: Malicious patch files cause ed to execute arbitrary commands . - CVE-2014-9637: Prevent DoS by remote attackers via a crafted diff file . - CVE-2016-10713: Prevent out-of-bounds access within pch_write_line that could have lead to DoS via a crafted input file . - CVE-2010-4651: Fixed a directory traversal bug :