subversion -- remotely triggerable "Assertion failed" DoS vulnerability or read overflow.

Subversion Project reports:

Subversion’s mod_dav_svn Apache HTTPD server module will trigger an assertion
on some requests made against a revision root. This can lead to a DoS.
If assertions are disabled it will trigger a read overflow which may cause a
SEGFAULT (or equivalent) or undefined behavior.
Commit access is required to exploit this.