title: Remote unauthenticated denial-of-service in Subversion mod_authz_svn
description: Subversion's mod_authz_svn module will crash if the server is using in-repository authz rules with the AuthzSVNReposRelativeAccessFile option and a client sends a request for a non-existing repository URL. This can lead to disruption for users of the service. This issue was fixed in mod_dav_svn+mod_authz_svn servers 1.14.1 and mod_dav_svn+mod_authz_svn servers 1.10.7
problem types: CWE-476 NULL Pointer Dereference
affected:
{
product: Apache Subversion
vendor: Apache Software Foundation
versions:
status: unaffected, version: mod_authz_svn 1.10.7
lessThan: 1.14.1, status: affected, version: mod_authz_svn, versionType: custom
}
workarounds: As a workaround, the use of in-repository authz rules files with the AuthzSVNReposRelativeAccessFile can be avoided by switching to an alternative configuration which fetches an authz rules file from the server's filesystem, rather than from an SVN repository.