The remote host is missing an update to the system as announced in the referenced advisory.
The following packages are affected: subversion subversion-freebsd p5-subversion py-subversion
CVE-2009-2411 Multiple integer overflows in the libsvn_delta library in Subversion before 1.5.7, and 1.6.x before 1.6.4, allow remote authenticated users and remote Subversion servers to execute arbitrary code via an svndiff stream with large windows that trigger a heap-based buffer overflow, a related issue to CVE-2009-2412.
Solution: Update your system with the appropriate patches or software upgrades.