Gentoo has issued an update for postgresql-server. This fixes a weakness and multiple vulnerabilities, which can be exploited by malicious users to bypass certain security restrictions and by malicious people to conduct brute force and spoofing attacks, manipulate certain data, disclose certain sensitive information, and compromise a user's system.

For more information:
SA48107
SA49345
SA50218

Solution
Update to "dev-db/postgresql-server-9.1.5" or later, "dev-db/postgresql-server-9.0.9" or later, "dev-db/postgresql-server-8.4.13" or later, or "dev-db/postgresql-server-8.3.20" or later.
Original Advisory
GLSA 201209-24:
http://www.gentoo.org/security/en/glsa/glsa-201209-24.xml

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers