OpenPKG Security Advisory - According to vendor security information [0], privilege escalation vulnerabilities exist in the PostgreSQL RDBMS [1] before version 8.1.3. The bug allowed any logged-in user to "SET ROLE" to any other database user id. Due to inadequate validity checking, a user could exploit the special case that "SET ROLE" normally uses to restore the previous role setting after an error. This allowed ordinary users to acquire superuser status, for example.
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