libsvn_ra_svn in Subversion 1.0.4 trusts the length field of (1) svn://, (2) svn+ssh://, and (3) other svn protocol URL strings, which allows remote attackers to cause a denial of service (memory consumption) and possibly execute arbitrary code via an integer overflow that leads to a heap-based buffer overflow.
subversion.tigris.org/security/CAN-2004-0413-advisory.txt
www.gentoo.org/security/en/glsa/glsa-200406-07.xml
www.novell.com/linux/security/advisories/2004_18_subversion.html
www.securityfocus.com/advisories/6847
www.securityfocus.com/archive/1/365836
www.securityfocus.com/bid/10519
bugzilla.fedora.us/show_bug.cgi?id=1748
exchange.xforce.ibmcloud.com/vulnerabilities/16396