Svnserve in Apache Subversion 1.4.0 through 1.7.12 and 1.8.0 through 1.8.1 allows local users to overwrite arbitrary files or kill arbitrary processes via a symlink attack on the file specified by the --pid-file option.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18554
https://exchange.xforce.ibmcloud.com/vulnerabilities/86972
http://www.securityfocus.com/bid/62266
http://subversion.apache.org/security/CVE-2013-4277-advisory.txt
http://lists.opensuse.org/opensuse-updates/2013-09/msg00054.html
http://lists.opensuse.org/opensuse-updates/2013-09/msg00031.html