Ensure That the Sticky Bit Is Set for Globally Writable Directories

The sticky bit of a common file is ignored by the kernel. The sticky bit shows up as the execute permission flag of a directory and is indicated with t. If the sticky bit set is for a directory, a user who is not root or the directory owner cannot delete files or directories in the directory,...

postgresql: non-owner 'REFRESH MATERIALIZED VIEW CONCURRENTLY' executes arbitrary SQL

A flaw was found in PostgreSQL. A late privilege drop in REFRESH MATERIALIZED VIEW CONCURRENTLY in PostgreSQL can allow an object creator to execute arbitrary SQL functions as the command issuer. The command intends to run SQL functions as the owner of the materialized view, enabling a safe refre...