USN-6802-1: PostgreSQL vulnerability
Lukas Fittl discovered that PostgreSQL incorrectly performed authorization in the built-in pgstatsext and pgstatsextexprs views. An unprivileged database user can use this issue to read most common values and other statistics from CREATE STATISTICS commands of other users. NOTE: This update will only fix fresh PostgreSQL installations. Current PostgreSQL installations will remain vulnerable to this issue until manual steps are performed. Please see the instructions in the changelog located at /usr/share/doc/postgresql-/changelog.Debian.gz after the updated packages have been installed, or in the PostgreSQL release notes located here: https://www.postgresql.org/docs/16/release-16-3.html https://www.postgresql.org/docs/15/release-15-7.html https://www.postgresql.org/docs/14/release-14-12.html
Affected Software
Event History
Frequently Asked Questions
What is the severity of USN-6802-1?
The severity of USN-6802-1 is considered high due to the potential for unauthorized data access.
How do I fix USN-6802-1?
To fix USN-6802-1, upgrade to the specified remedial package versions: postgresql-16 to 16.3-0ubuntu0.24.04.1, postgresql-client-16 to 16.3-0ubuntu0.24.04.1, postgresql-15 to 15.7-0ubuntu0.23.10.1, or their respective client versions.
Who is affected by USN-6802-1?
USN-6802-1 affects unprivileged database users in PostgreSQL versions prior to the remedial updates.
What issue does USN-6802-1 address?
USN-6802-1 addresses an authorization vulnerability in PostgreSQL that allows unprivileged users to read statistics from CREATE STATISTICS commands of other users.
When was USN-6802-1 reported?
USN-6802-1 was reported in relation to CVE-2024-4317, highlighting a critical flaw in PostgreSQL's authorization mechanism.