The remote host is missing updates announced in advisory TSLSA-2005-0015.
From the CVE entry: Multiple buffer overflows in gram.y for PostgreSQL 8.0.1 and earlier may allow attackers to execute arbitrary code via (1) a large number of variables in a SQL statement being handled by the read_sql_construct function, (2) a large number of INTO variables in a SELECT statement being handled by the make_select_stmt function, (3) a large number of arbitrary variables in a SELECT statement being handled by the make_select_stmt function, and (4) a large number of INTO variables in a FETCH statement being handled by the make_fetch_stmt function, a different set of vulnerabilities than CVE-2005-0245.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0247 to this issue.
Solution: Update your system with the packages as indicated in the referenced security advisory.