Integer overflow in the read_string function in libsvn_ra_svn/marshal.c in Apache Subversion 1.9.x before 1.9.3 allows remote attackers to execute arbitrary code via an svn:// protocol string, which triggers a heap-based buffer overflow and an out-of-bounds read.
https://security.gentoo.org/glsa/201610-05
http://www.securitytracker.com/id/1034469
http://www.securityfocus.com/bid/82300
http://subversion.apache.org/security/CVE-2015-5259-advisory.txt