FreeBSD: VID-c8174b63-0d3a-11e6-b06e-d43d7eed0ce2 (CVE-2016-2168): subversion -- multiple vulnerabilities

Subversion project reports: svnserve, the svn:// protocol server, can optionally use the Cyrus SASL library for authentication, integrity protection, and encryption. Due to a programming oversight, authentication against Cyrus SASL would permit the remote user to specify a realm string which is a prefix of the expected realm string. Subversion's httpd servers are vulnerable to a remotely triggerable crash in the mod_authz_svn module. The crash can occur during an authorization check for a COPY or MOVE request with a specially crafted header value. This allows remote attackers to cause a denial of service.