PostgreSQL 7 and 8 users are advised to update their installations as the development team has released new versions which fix a vulnerability classed as moderately severe in PL/perl and PL/tcl. CVE-2010-1169, CVE-10-1447 and CVE-2011-1170 reports detail the vulnerabilities involved. Read the full article on The H Security Blog: Postgresql 7 & 8 users need to update installations to avoid falling for spam during the season of giving.
Source: https://threatpost.com/postgresql-vulnerabilities-fixed-051710/73976/