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.
Exploitability
AV:NAC:LAu:SImpact
C:NI:NA:P4/AV:N/AC:L/Au:S/C:N/I:N/A:P