IDNA 2003 makes curl use wrong host

When curl is built with libidn to handle International Domain Names IDNA, it translates them to puny code for DNS resolving using the IDNA 2003 standard, while IDNA 2008 is the modern and up-to-date IDNA standard. This misalignment causes problems with for example domains using the German ß...

DEBIAN-CVE-2016-6263

The stringpreputf8nfkcnormalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service out-of-bounds read and crash via crafted UTF-8 data...