The vulnerabilities of the pg_ctlcluster, pg_createcluster, and pg_upgradecluster scripts from the postgresql-common package can be exploited by attackers to compromise the integrity of data in PostgreSQL database management systems.

The vulnerability of the pgctlcluster, pgcreatecluster, and pgupgradecluster scripts from the postgresql-common package is related to an incorrect definition of the reference before accessing the file. Exploiting this vulnerability could allow an attacker to compromise the integrity of the data...