The core server component in PostgreSQL 8.4 before 8.4.1, 8.3 before 8.3.8, and 8.2 before 8.2.14 allows remote authenticated users to cause a denial of service (backend shutdown) by "re-LOAD-ing" libraries from a certain plugins directory.
Publish Date : 2009-09-17 Last Update Date : 2018-10-10
Not vulnerable. This issue did not affect the versions of PostgreSQL as shipped with Red Hat Enterprise Linux 3, 4, or 5.
In PostgreSQL versions prior to 8.2, only database administrator was able to LOAD additional plugins and use it to cause server crash. However, this does not bypass trust boundary, so its not a security flaw for older PostgreSQL versions. Additionally, no plugins are shipped in Red Hat PostgreSQL packages by default.
This issue was addressed in Red Hat Application Stack v2 via https://rhn.redhat.com/errata/RHSA-2009-1461.html .
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if you want to learn what you should do to verify a vulnerability.