The mod_dav_svn Apache HTTPD server module in Subversion 1.6.x before 1.6.21 and 1.7.0 through 1.7.8 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) via a LOCK on an activity URL.
lists.opensuse.org/opensuse-updates/2013-04/msg00095.html
lists.opensuse.org/opensuse-updates/2013-06/msg00069.html
mail-archives.apache.org/mod_mbox/subversion-announce/201304.mbox/%3CCADkdwvRoyVrZV12tgC0FMGrc6%2BMisd3qTcZ%2BDdpFGgTahkgAkQ%40mail.gmail.com%3E
mail-archives.apache.org/mod_mbox/subversion-announce/201304.mbox/%3CCADkdwvSTMLbn4q_KM3Ph2UOeSiPGhEK4%3DSvwEjaHW_GUGkYWPQ%40mail.gmail.com%3E
rhn.redhat.com/errata/RHSA-2013-0737.html
subversion.apache.org/security/CVE-2013-1846-advisory.txt
www.mandriva.com/security/advisories?name=MDVSA-2013:153
www.ubuntu.com/usn/USN-1893-1
bugzilla.redhat.com/show_bug.cgi?id=929087
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18087