Description
PEAR Archive_Tar allows an unserialization attack because phar: is blocked but PHAR: is not blocked. PEAR stands for PHP Extension and Application Repository and it is an open-source framework and distribution system for reusable PHP components with known usage in third-party products such as Drupal Core and Red Hat Linux.
Recommended action
Apply updates per vendor instructions.
CISA remediation due date for U.S. federal agencies: 15 Sep 2022.
Collected automatically from public sources. Verify affected versions and fixes in the vendor's notice before acting.