Postgresql was updated to version 9.0.13 (bnc#812525):
* CVE-2013-1899: Fix insecure parsing of server command-line switches. A connection request containing a database name that begins with "-" could be crafted to damage or destroy files within the server's data directory, even if the request is eventually rejected.
* CVE-2013-1900: Reset OpenSSL randomness state in each postmaster child process. This avoids a scenario wherein random numbers generated by "contrib/pgcrypto" functions might be relatively easy for another database user to guess. The risk is only significant when the postmaster is configured with ssl = on but most connections don't use SSL encryption.
* CVE-2013-1901: Make REPLICATION privilege checks test current user not authenticated user. An unprivileged database user could exploit this mistake to call pg_start_backup() or pg_stop_backup(), thus possibly interfering with creation of routine backups.
* See the release notes for the rest of the changes:
http://www.postgresql.org/docs/9.0/static/release-9-0-13.html
/usr/share/doc/packages/postgresql91/HISTORY