Apache Subversion 1.0.0 through 1.7.x before 1.7.17 and 1.8.x before 1.8.10 uses an MD5 hash of the URL and authentication realm to store cached credentials, which makes it easier for remote servers to obtain the credentials via a crafted authentication realm.
https://support.apple.com/HT204427
http://rhn.redhat.com/errata/RHSA-2015-0166.html
http://rhn.redhat.com/errata/RHSA-2015-0165.html
http://lists.opensuse.org/opensuse-updates/2014-08/msg00038.html
http://lists.apple.com/archives/security-announce/2015/Mar/msg00003.html
https://security.gentoo.org/glsa/201610-05
http://www.ubuntu.com/usn/USN-2316-1
http://www.securityfocus.com/bid/68995
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://subversion.apache.org/security/CVE-2014-3528-advisory.txt
http://secunia.com/advisories/60722