Description
It was discovered that PostgreSQL versions before 10.5, 9.6.10, 9.5.14, 9.4.19, and 9.3.24 failed to properly check authorization on certain statements involved with "INSERT ... ON CONFLICT DO UPDATE". An attacker with "CREATE TABLE" privileges could exploit this to read arbitrary bytes server memory. If the attacker also had certain "INSERT" and limited "UPDATE" privileges to a particular table, they could exploit this to update other columns in the same table.
Remediation
References
Related Vulnerabilities
PHP Use After Free Vulnerability (CVE-2016-4473)
WordPress Plugin WooCommerce Checkout For Digital Goods Cross-Site Request Forgery (2.2)
osTicket Other Vulnerability (CVE-2006-5407)
WordPress Plugin WP Page Widget Cross-Site Scripting (2.7)
Django Resource Management Errors Vulnerability (CVE-2011-4137)