Description
PostgreSQL 10.x before 10.1, 9.6.x before 9.6.6, 9.5.x before 9.5.10, 9.4.x before 9.4.15, 9.3.x before 9.3.20, and 9.2.x before 9.2.24 runs under a non-root operating system account, and database superusers have effective ability to run arbitrary code under that system account. PostgreSQL provides a script for starting the database server during system boot. Packages of PostgreSQL for many operating systems provide their own, packager-authored startup implementations. Several implementations use a log file name that the database superuser can replace with a symbolic link. As root, they open(), chmod() and/or chown() this log file name. This often suffices for the database superuser to escalate to root privileges when root starts the server.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat, Inc. postgresql
10.x before 10.1, 9.6.x before 9.6.6, 9.5.x before 9.5.10, 9.4.x before 9.4.15, 9.3.x before 9.3.20, 9.2.x before 9.2.24affected
References
- https://access.redhat.com/errata/RHSA-2017:3402 ↗
- http://www.securityfocus.com/bid/101949 ↗
- https://access.redhat.com/errata/RHSA-2017:3403 ↗
- https://access.redhat.com/errata/RHSA-2017:3405 ↗
- https://www.postgresql.org/support/security/ ↗
- http://www.securitytracker.com/id/1039752 ↗
- https://www.postgresql.org/about/news/1801/ ↗
- https://access.redhat.com/errata/RHSA-2017:3404 ↗