The mod_dav_svn Apache HTTPD server module in Apache Subversion 1.x before 1.7.19 and 1.8.x before 1.8.11 allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a REPORT request for a resource that does not exist.
lists.apple.com/archives/security-announce/2015/Mar/msg00003.html
rhn.redhat.com/errata/RHSA-2015-0165.html
rhn.redhat.com/errata/RHSA-2015-0166.html
secunia.com/advisories/61131
subversion.apache.org/security/CVE-2014-3580-advisory.txt
www.debian.org/security/2014/dsa-3107
www.securityfocus.com/bid/71726
www.ubuntu.com/usn/USN-2721-1
support.apple.com/HT204427