This bug was fixed in the package postgresql-15 - 15.7-0ubuntu0.23.10.1 --------------- postgresql-15 (15.7-0ubuntu0.23.10.1) mantic-security; urgency=medium
* New upstream version (LP: #2067388). + A dump/restore is not required for those running 15.X. + However, a security vulnerability was found in the system views pg_stats_ext and pg_stats_ext_exprs, potentially allowing authenticated database users to see data they shouldn't. If this is of concern in your installation, follow the steps below to rectify it. + Also, if you are upgrading from a version earlier than 15.6, see those release notes as well please. + Restrict visibility of pg_stats_ext and pg_stats_ext_exprs entries to the table owner (Nathan Bossart) These views failed to hide statistics for expressions that involve columns the accessing user does not have permission to read. View columns such as most_common_vals might expose security-relevant data. The potential interactions here are not fully clear, so in the interest of erring on the side of safety, make rows in these views visible only to the owner of the associated table. The PostgreSQL Project thanks Lukas Fittl for reporting this problem. By itself, this fix will only fix the behavior in newly initdb'd database clusters. If you wish to apply this change in an existing cluster, you will need to do the following: - In each database of the cluster, run the /usr/share/postgresql/15/fix-CVE-2024-4317.sql script as superuser. In psql this would look like: \i /usr/share/postgresql/15/fix-CVE-2024-4317.sql It will not hurt to run the script more than once. - Do not forget to include the template0 and template1 databases, or the vulnerability will still exist in databases you create later. To fix template0, you'll need to temporarily make it accept connections. Do that with: ALTER DATABASE template0 WITH ALLOW_CONNECTIONS true; and then after fixing template0, undo it with: ALTER DATABASE template0 WITH ALLOW_CONNECTIONS false; (CVE-2024-4317) + Details about these and many further changes can be found at: https://www.postgresql.org/docs/15/release-15-7.html. * d/postgresql-15.NEWS: Update. -- Sergio Durigan Junior <sergio.duri...@canonical.com> Tue, 28 May 2024 10:27:51 -0400 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2067388 Title: New upstream microreleases 12.19, 14.12, 15.7 and 16.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postgresql-12/+bug/2067388/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs